Donovan Harshbarger

Description: Part quirky geometric abstract, part long and creepy spider legs, part spooky spider web or cobweb, yet fully distinctive contemporary art.

Description: Bursts of brilliant red and orange with a hint of green explode in formations a bit like starbursts, but with a final shape evocative of a butterfly. The radial lines impart a sense of motion and energy to go with the almost neon colors.

Description: A colorful representation of the beautiful wildlife of lakes, this graceful bird is formed from bold, bright geometric curves.

Description: Bold, resounding red shapes. Bright accents of orange and purple. Warped lines imparting a sense of vertical motion and energy.

Description: Bright fiery orange colors and energetic motion lines characterize this geometric abstract, evocative of a fire juggling performance and ancient tribal tradition.

Description: Being normal is overrated. That's why this t-shirt features graphs of other great distributions: hypergeometric, negative binomial, poisson, and geometric.

Description: Peach and pink (magenta?) geometric shapes warped and twisted into a slightly mind-bending expression of artistic fun. Great for fans of quirky contemporary art and unique graphics.

Description: As a generative artist, I created this work using lots of math, some random numbers, and a computer program written in Python. Did my program somehow know about Munch's iconic "The Scream?" The fun color choices give it a different feel, but it's hard to miss the resemblance.

Description: A pleasing geometric abstract in a dominant violet, with complementary accents of muted lavenders and yellows. And as with many of his creations, Mr. Harshbarger composed this design with a computer program and lots of trigonometry.

Description: This design bridges modern technology and prehistoric worlds. The subject is a cute (though morose) white and purple dinosaur. But the artist's design method is a computer program and a lot of math.

Description: White swirling curves including flower petals, with just enough botanical green to complete the theme of new growth and life. Not too complicated, and not quite like anything your friends have either.

Description: A modern generative art design created using random mathematical transformations of points and line styles, resulting in a ghostly, slightly spooky, yet still humanoid appearance.

Description: Outstretched arms and a heart at the top adorn this unique geometric design in bright warm colors. This design was created by a generative artist using math and a computer program written in Python.

Description: High energy lines form an abstract bird of prey, perhaps an eagle, maybe an osprey, a hawk, or other fierce raptor. It was generated by computer code, making it a great gift for programmers and proud geeks as well.

Description: Start with a generative artist with a computer, add some math and Python code, and the result is this unique geometric version of a soaring duck.

Description: Take a generative artist with a computer, add some math and Python code, and the result is this unique abstract not entirely unlike the long fin red serpae tetra, a denizen of many aquariums but native to Brazil.

Description: This abstract design was created by a generative artist with math and a computer program. The artist sees an angel swooping in, but others might see a superhero, or even a swimmer or diver pulling up after entering the water.

Description: This dragon in a unique geometric style was created by a generative artist using math and a Python computer program as his tools.

Description: Created by a generative artist using math and a computer program as his tools. The smooth, flowing geometric curves in this work evoke a gentle feminine spirit. While the artist sees an angel, to others she could be a kind mother from a far-off culture, and still others might be reminded of the Virgin Mary.

Description: Created by a generative artist using math and a computer program as his tools, this abstract work features a unique geometric representation of the hummingbird.

Description: Fight the ridiculous stereotype that girls aren't supposed to like mathematics. This empowering message is great for so many, from girls who love math and science to elementary teachers seeking to nurture intelligent young women.

Description: A human brain with the eight types of things Paul directs us to think on, those which are: true, honorable, pure, right, lovely, excellent, reputable, and praiseworthy.

Description: A rectangular template with a drag and drop area asking the user to upload a T-shirt image. Lazy slacker design? Hilarious mistake? Just internet geek humor? In any case, the joke should be good for some smiles.

Description: The humorous quips about committees are legion. If a famous comic strip about office life strikes a little too close to home, this demotivational humor might be just the thing to lighten the mood.

Description: Having a little fun with an age-old teacher cliche, because being the grammar police should be humorous as well as educational.

Description: A parody election tee for the fictional Smith for U.S. Congress campaign. The slogan "Agreeing with all of you about everything" reminds us just how silly the pandering gets.

Description: A parody election T-shirt for the fictional Smith for U.S. Congress campaign, with a slogan showing just how low our standards have sunk.

Description: What exactly does it mean to follow your bliss? In this demotivational twist on the familiar slogan, it means that your bliss concludes you're a slightly creepy stalker.

Description: In the form of a trophy largemouth bass is the motto of the angler hooked on fishing.

Description: A pun on the classic slogan and song title winds into a spool of embroidery thread. Keep your friends in stitches and have them bobbin' along with this shirt.

Description: A nerdy math joke provides an unexpected twist on a familiar quote.

Description: A parody campaign T-shirt for the fictional Smith for U.S. Congress campaign, poking fun at the ridiculous attacks ads we're subjected to every election season.

Description: Cute polar bears for the proud science geek, labelled with positive and negative dipoles and portrayed with opposite charges attracting as if dissolved in water.

Description: The thought-provoking motivational quote "To be excellent, do a common thing in an uncommon way." Because greatness and achievement don't usually depend on extraordinary opportunity so much as exceptional mental attitude.

Description: A watercolor heart embraced by loving arms in a warm, kind hug. Cute childlike typography and hands complete the kid-friendly aesthetic for the young and the young at heart.

Description: Typography and a simple flower, with an inspirational quote from the poetry of William Cowper.