Donovan Harshbarger

Description: A geometric abstract in vibrant, almost neon hues of peach and coral red, adding energy to the imminent strike of the snake.

Description: Swirling geometric curves of fiery neon red form this unique modern abstract.

Description: Osculate means to kiss. So we have a four-leaf clover, traditional green, and an amusing parody of the "Kiss me, I'm Irish" shirts that are ubiquitous on St. Patrick's Day.

Description: A fictional quantum mechanic servicing your broken atoms. A diagram of the intersection showing the location, or at least a probability distribution of dots showing where they probably are, in according with Heisenberg's uncertainty principle.

Description: Boolean algebra isn't just for mathematical logic. It's also useful in circuit design and programming. The ghosts make an amusing juxtaposition to the geeky math symbols as well as making the "Boo" pun possible.

Description: A cute cartoon cow. An adorable newborn calf sprawled out beneath her. And the gloriously awful pun, "If a cow gives birth, is it decalfinated?"

Description: The USA has a rich heritage of welcoming immigrants to our shores. Ellis Island. The Statue of Liberty with its inscription "Give me your tired, your poor, Your huddled masses yearning to breathe free." Celebrate that tradition.

Description: This is for the person that can remain calm and composed in the face of almost anything...except spiders. A large scary arachnid crawls across the shirt, and keep calm is abandoned for panic.

Description: A parody of the "somebody loses a wiener" parody of the "someone loses an eye" saying, featuring a cute dachshund falling into a well.

Description: The slogan "It's all fun and games until someone loses an i" is a mathematical pun on the imaginary number i sure to get a laugh, or at least a smirk, from algebra students in the know. And the design in the shape of an eye adds a little extra cleverness.

Description: There's nothing like a snow day. Except a delay, which lets you sleep in and doesn't even have to be made up. What teacher or student in the northern half of the U.S. hasn't thought this at one time or a million? Including the designer, who was a secondary teacher for twenty years.

Description: The i, the imaginary number that makes the square root of a negative number possible has fallen. So naturally, it's all fun and games until someone loses an i.

Description: Start with a cow. Add the electrical schematic symbol for ground. Finish with a a gloriously awful pun of the sort dads are notorious for.

Description: A snarky math teacher has the perfect comment for a student who has forgotten to include the imaginary number i in a test answer.

Description: Two buttons. One for Jesus, one for the world. It's the perfect metaphor, because the radio button interface only lets you choose one. As the Bible says, do not be conformed to the ways of this world.

Description: There's way too much plastic and other trash in the ocean. If the people who create this mess won't listen to us, maybe they'll listen to a cute representative of undersea life?

Description: A golf green, flag, and ball, with the slogan "If you can read this, my wife won't let me play golf." If you're a golf widow, your husband needs this. And if you're a golfer, show your wife that you have a sense of humor.

Description: Seven children in the dress of different nations and continents hold hands, while the proverb reads, "Though we are baked in different ovens, we are still kneaded from the same dough."

Description: Five gloriously awful puns on the names of five common North American sport fish: the walleye, pike, bass, trout, and perch.

Description: Because some days we just need our besties to cheer us up in this crazy world.

Description: A groan-worthy interdisciplinary pun for the intellectual with a sense of humor. A protist of the genus Euglena uses its flagellum to nail its theses to the door of the Castle Church in Wittenberg, as Luther did in the Protestant Reformation.

Description: Yes, sociology terminology can be funny. Or at least it can when the social mores (cultural standards of moral behavior) that you study are replaced by moray eels being social and drinking wine.

Description: A glorious groaner pun on bacterial formations, the clusters of staff (staph) vs. the chains of strep. Possibly the ultimate dad joke of life science.

Description: Simple lighthearted illustrations of the shapes of cocci, bacilli, vibrio, and spirlla. Who knew that bacteria classification could be so adorable?

Description: Illustrations of the dove, the cross, and the empty tomb succinctly convey the message of the Gospel.

Description: One of the great quotes from one of the designer's favorite movies, parodied in the context of the chess opening. When someone laughs at this shirt, you know you have found a kindred spirit.

Description: There's the sigma notation. It looks like a normal infinite series. But what's that stuff on the A? In a gloriously awful groaner pun on the famous Fourier series of college mathematics, it's revealed as a furry A series.

Description: Moose are beautiful creatures, and the wilderness of Maine has plenty of them. Hence the new and amusing state motto, only slightly tongue-in-cheek.

Description: At first glance, it's yet another business t-shirt in hipster style. Until you realize it's for a capybara rental store. It's the funny t-shirt nobody expects. And it's even better if you live near Champaign-Urbana, Illinois, where the fictional store is said to be located.

Description: A Montana tee with a new motto: "The people are few, but the cattle are friendly." If you love that cows in the "Treasure State" outnumber people by 2.5 to 1, this may be the perfect shirt for you.

Description: An adorable feline and her canine friend, endowed with the horns of gnus in a light-hearted parody of President Trump's "Fake News" slogan.

Description: This parody of one of the great 80s hair bands takes the "Talk Nerdy to Me" line a step deeper into glorious mathematical geekdom with four graphs of Poisson distributions.

Description: The familiar skater slogan "Skate or Die," adapted to the genteel sport of figure skating, A good-natured parody of skateboard culture and an amusing tribute to figure skating all in one.

Description: A winding road through the wilderness, perfect for those possessed by wanderlust, those who must go when the mountains call, in earth tones perfect for those who can never explore enough of the earth.

Description: The sound of the saxophone is lovely, even captivating. Why not emphasize its beauty with a unique abstract art design in cool blue and green hues?

Description: Might it be the mother of all Mondays? This poor soul is not having a good day. He drags himself to work, or perhaps to school, his head slumped low. But if his comically dejected slump brings a smile to your face, it works out well.