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Math is beautiful! Add a touch of geek to your wardrobe with this top, which features 11 of the world's most beautiful equations. From Dirac's Equation and Riemann's Formula to Bayes's Theorem and the Euler-Lagrange Equation, there's an equation/formula/constant/theorem to warm the hearts (and more importantly, the minds) of those with a fascination with numbers and their importance and relationship to the natural world. The perfect idea for the mathematician on your gift list!

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Math is Beautiful 11 Mathematical Equations T-Shirt

Celebrate IWD (International Women's Day) on March 8th with this shirt, which features purple, peach, and white silhouettes of women's faces with the 2024 theme and hashtag Inspire Inclusion in elegant block lettering. Reverse shows identical design.

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Colorful Faces International Women's Day March 8 T-Shirt

Make June 8th (World Oceans Day) a memorable event with this commemorative shirt, which features the 2024 theme "Awaken New Depths" encircling a stylized aquatic globe in the letter "O" of "Oceans". 

Copy and Layout © W.H. Sim. All Rights Reserved. See more at zazzle.com/expressionsoccasions

World Oceans Day Blue Stylized Earth Waves T-Shirt

Celebrate the big three oh with this stylish modern design, which features striking black, white, and bright yellow lettering set on a rich black background.

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Modern Girly Bright Yellow 30 and Flirty T-Shirt

With the words Vintage Original (and in fine print, "The Man. The Myth. The Legend.") styled in a vintage grunge font, this is the birthday shirt he won't be embarrassed to wear, any day of the year! Add celebrant's name and year of birth, and personalize the catchphrase as desired.

Design © W.H. Sim, All Rights Reserved. See more at zazzle.com/expressions

Vintage Original Black Gold Birthday Year T-Shirt

Celebrate the big eight oh with this stylish modern design, which features striking black, white, and pink block and handwritten lettering set on a rich black background.

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Modern Girly Pink 80 and Awesome T-Shirt

Celebrate the International Day of Peace (aka World Peace Day) on September 21 with this button, which shows a bright orange peace sign standing in for the letter O in world, encircled by laurel leaves on a calming blue background.

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Blue Orange World Peace Day Peace Sign T-Shirt

Celebrate the birthday boy's first birthdays with this whimsical shirt, which features a cute tree frog with flaming red spiked hair, rocking a red guitar on a starry black background!

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Rockin' Birthday Tree Frog with Red Guitar T-Shirt

Celebrate the 51st sapphire wedding anniversary and a love that stands the test of time with this stylish pocket watch! Elegant black and white lettering with hexagonal confetti on a sapphire blue background add a memorable touch for this special occasion and extraordinary milestone. Personalize with the couple's names and dates of marriage.

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Elegant 51st Sapphire Wedding Anniversary Pocket Watch

Celebrate the 4th wedding anniversary with this commemorative sandstone coaster! Elegant white script and serif lettering and hexagonal confetti on a grey linen background add a memorable touch for this special occasion and milestone. Customize with the happy couple's names, add an initial or monogram for their surname, and add dates for their linen anniversary. Wraparound text on the rims of the coaster may be personalized with special congratulatory messages, or used as is.

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Elegant 4th Linen Wedding Anniversary Celebration Coaster

Celebrate the Chinese new year with these simple but striking paper placemats, which feature the Chinese letterform for the Horse, the seventh sign/animal in the Eastern zodiac, and traditional celebratory Chinese greetings, rendered on a gold-to-red gradient background. Customize as desired.

Design © W.H. Sim. See more at zazzle.com/expressionsoccasions

Horse 馬 Red Gold Chinese Zodiac Lunar Symbol Paper Pad

Elegant 17th Shells Wedding Anniversary Thank You Card

Elegant 17th Shells Wedding Anniversary Metal Ornament

Elegant 17th Shells Wedding Anniversary Paper Pad

Elegant 17th Shells Wedding Anniversary Glass Ornament

Elegant 17th Shells Wedding Anniversary Save The Date

The beautiful way to celebrate a 17th shells wedding anniversary! Elegant lettering with lavender seashells on a beach sand white background add a memorable touch for this special occasion and milestone. 

Design © W.H. Sim. See more at [the Expressions & Occasions store!](https://www.zazzle.com/expressionsoccasions)

EO 17th Shells Wedding Anniversary

Elegant 2nd Garnet Wedding Anniversary Floor Decals

Elegant 2nd 29th Garnet Wedding Anniversary Trinket Tray

Elegant 2nd Garnet Wedding Anniversary Celebration Table Tent Sign

Elegant 2nd Garnet Wedding Anniversary Candy Jar

Elegant 2nd Garnet Wedding Anniversary Celebration Paper Plates

Elegant 2nd Garnet Wedding Anniversary Sign

Based on the portfolio of graphic designer W.H. Sim, the EXPRESSIONS & OCCASIONS™ 2ND GARNET WEDDING ANNIVERSARY COLLECTION showcases everything you need to help you celebrate that cherished milestone--from cake pops, clocks, coasters, cookies, drinkware, favors, gift bags, pens, invitations, stickers, and throws, to bunting flags, coasters, guestbooks, wine labels, plates, platters, and trivets. Enhance special moments by exploring this collection further, where each item contributes to the narrative of this love story. © W.H. SIM. ALL RIGHTS RESERVED.

EO 2nd Garnet Wedding Anniversary

Elegant 46th Pearl Wedding Anniversary Celebration Serving Tray

Elegant 46th Pearl Wedding Anniversary Celebration Thermal Wine Tumbler

Elegant 46th Pearl Wedding Anniversary Celebration Poker Chips

Elegant 46th Pearl Wedding Anniversary Celebration Confetti

Elegant 46th Pearl Wedding Anniversary Celebration Cutting Board

Elegant 46th Pearl Wedding Anniversary Celebration Hand Sanitizer

Based on the portfolio of graphic designer W.H. Sim, the EXPRESSIONS & OCCASIONS™ 46TH PEARL WEDDING ANNIVERSARY COLLECTION showcases everything you need to help you celebrate that cherished milestone--from cake pops, clocks, coasters, cookies, drinkware, favors, gift bags, pens, invitations, stickers, and throws, to bunting flags, coasters, guestbooks, wine labels, plates, platters, and trivets. Enhance special moments by exploring this collection further, where each item contributes to the narrative of this love story. © W.H. SIM. ALL RIGHTS RESERVED

EO 46th Pearl Wedding Anniversary

Elegant 65th Blue Sapphire Wedding Anniversary Acrylic Sign

Elegant 65th Blue Sapphire Wedding Anniversary Canvas Print

Elegant 65th Blue Sapphire Wedding Anniversary Glass Ornament

Elegant 65th Blue Sapphire Wedding Anniversary Sherpa Blanket

Elegant 65th Blue Sapphire Wedding Anniversary Hershey®'s Kisses®

Elegant 65th Blue Sapphire Wedding Anniversary Hand Fan

Based on the portfolio of graphic designer W.H. Sim, the EXPRESSIONS & OCCASIONS™ 65TH BLUE SAPPHIRE WEDDING ANNIVERSARY COLLECTION showcases everything you need to help you celebrate that cherished milestone--from cake pops, clocks, coasters, cookies, drinkware, favors, gift bags, pens, invitations, stickers, and throws, to bunting flags, coasters, guestbooks, wine labels, plates, platters, and trivets. Enhance special moments by exploring this collection further, where each item contributes to the narrative of this love story. © W.H. SIM. ALL RIGHTS RESERVED.

Math is Beautiful 11 Mathematical Equations T-Shirt

Math is Beautiful 11 Mathematical Equations T-Shirt

More from Expressions & Occasions

Other men's t-shirts from various stores