Function T-Shirts

Description: Gear up for the next exciting installment, featuring all of your favorite chacters....movesets. From the Function side we have Blasterman, Kickgirl, Ouch-hug and LOL That Guy's in This Game?!? Watch as they clash with feared fighters from the rival Function universe, Mister Easy, Vague Robot and the Jump Brothers, Tri and Box.

Description: Schoolhouse Rock! is an American interstitial programming series of animated musical educational short films (and later, music videos) which aired during the Saturday morning children's programming block on the U.S. television network ABC. The themes covered included grammar, science, economics, history, mathematics, and civics. The series' original run lasted from 1973 to 1985;

Description: Riemann zeta function is a key topic in number theory and its applications in physics, chemistry, and combinatorics.

Description: I don't give a f(x) where f(x) can be anything.

Description: I don't give a f(x) where f(x) can be anything.

Description: Left and right brain function, watercolor brain, brain function, right brain function, left brain function, medical office decor

Description: Function Junction , Schoolhouse Rock

Description: A black background with white text and a small section of yellow text. The text reads '(function repeat() { coffee++; code++; sleep = 0; repeat(); })()'. It mimics a programming code snippet related to repetitive tasks.

Description: A black background with large white text that reads 'I Don't Give A Function,'. To the right of the comma is a green pair of curly braces.

Description: Turn heads (and raise eyebrows) with this clever, math‑nerd hoodie design that reads: I’m √(1 + tan² c) and I know it. It’s a playful, trigonometric twist on the classic “I’m sec c and I know it,” guaranteed to spark smiles from fellow STEM lovers.

Description: Dance Math features with this design! The funny gift for nerds and mathematicians.

Description: A stylized character, resembling a conductor or engineer, stands holding a red lantern with a yellow glow. He wears blue overalls, a light blue shirt, a red scarf, and a tall blue hat with red and yellow accents. He has an angry expression. Above him, a speech bubble contains the text "WHAT'S YOUR FUNCTION?".

Description: A cartoon character resembling a train conductor or engineer wears a blue uniform with overalls, a red bandana, and a tall blue hat. The character holds a yellow lantern with a red frame in its left hand. A speech bubble above the character displays the text "WHAT'S YOUR FUNCTION?".

Description: A monochrome composition featuring programming syntax. The text '(function repeat() {' is presented in yellow and orange, followed by lines of code: 'eat();', 'sleep();', 'code();', and 'repeat();'. The closing sequence is '})();'.

Description: Bold white text reads "I Don't Give" on the top line. The second line reads "A" in white, followed by a green bracket symbol '{' and the word "function" in white. The background is black.

Description: A cartoon figure of a plump person wearing a large chef's hat, round glasses, a red kerchief, and blue overalls. The figure holds a red lantern in its right hand. The text "What's Your Function?" appears below the figure.

Description: A cartoon-style boy character wearing a blue conductor's cap, overalls, and a red bandana around his neck. He holds a red and yellow lantern in his left hand. Below the character, the text "What's Your Function?" is displayed in white sans-serif font.

Description: A bold, monochrome design with three lines of text in white. The text reads "I DON'T", "GIVE A", and "FUNCTION" followed by a bright green closing curly brace and parenthesis "{}". The background is black.

Description: A cheerful, cartoon-style depiction of a chubby man wearing a blue hat, overalls, and a red scarf, holding a red lantern. He sports round glasses and a mustache. The text "WHAT'S YOUR FUNCTION?" appears prominently below him in white serif font.

Description: A cartoon person dressed as a train conductor, wearing a blue and white striped hat, glasses, and blue overalls with a red scarf, holds a red lantern. The text "WHAT'S YOUR FUNCTION?" is displayed prominently below the figure. The style is illustrative and bold.

Description: Ask the next muggle you see!

Description: A monochrome graphic featuring bold white text at the top reading "HOLY SHIFT! LOOK AT THE ASYMPTOTE ON THAT MOTHER FUNCTION!". Below the text is a Cartesian coordinate system with axes labeled 'y' and 'x1', and the origin marked as '0'. A curve representing the function f(x) = x/(x-1) is plotted, showing an asymptote.

Description: This awesome, stylish shirt features a graph of periodic trigonometric functions and the words "Without Math I Can't Function". Perfect Tshirt for mathematicians, students of trigonometry, algebra, calculus, math lovers, and math teachers or educators. Are you into Math and Science? Makes a great gift for any mathematician, geek, nerd, tech lover, college student, teacher, or back to school. Funny math pun shirt that includes a graph of periodic trigonometric functions and a clever, sarcastic pun.

Description: Schoolhouse Rock

Description: A funny quote design for everyone who loves sarcastic and ironic quotes. The Function Can't Handle My Tomfoolery design is a perfect present for friends and family on any occasion.

Description: Powered by caffeine and barely functioning. A relatable funny coffee design for exhausted students, office workers, night owls, and coffee addicts everywhere.

Description: brain function illustration by MAKO DESIGN FOR U !

Description: Still here. Still proud. Absolutely running on fumes and the sheer audacity of existing — this one's for every queer person who's shown up to one more march, survived one more news cycle, and kept their rainbow flying even when they had nothing left in the tank. The most honest Pride design you'll find.

Description: This design celebrates the vital connection between child development and active engagement. Highlighting how Play Is Learning for Communication, Motor Skills, and Executive Function, it speaks to occupational therapy professionals, physical therapy professionals, speech therapy professionals, early childhood educators, special education teachers, and parents passionate about developmental growth.

Description: Too Hot To Function

Description: Gritty alternative streetwear graphic featuring a highly detailed anatomical X-ray and MRI scan style illustration of the human head, skull, and glowing brain. Perfect dark aesthetic clothing choice for techno rave fans, metalheads, goth punk styles, and biology or science geeks who love edgy, high-contrast monochrome art.

Description: I Function Best With Snacks And Sarcasm

Description: I Function Best With Snacks And Sarcasm

Description: I Function Best With Snacks And Sarcasm

Description: I Function Best With Snacks And Sarcasm