50% off storewide closeout sale!

This is a going-out-of-business sale. This was started as a family business, and since my divorce several years ago, my heart hasn't been in it. So I'm moving on.

Everything is 50% off, while it lasts! The discount happens as soon as you put something in your cart.

Several designs are completely sold out and no longer available, and most shirts have sold out in one or more sizes.

Click here to see shirts listed by sizes that are still available.

Click here for for Women's shirts sorted by available sizes.

Click here for for Youth shirts sorted by available sizes.

Orders over $200 get a 15 percent discount and free USA shipping; orders over $400 get a 20 percent discount and free USA shipping.

Adult Large

Products

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Warning Engage Brain T-shirt
Printed on Front and Back

Front upper left chest: Stylized "Think" logo.
Back: "WARNING: Engage your brain before opening your mouth. In case of malfunction or loss of control, stop, back up, and try again."
Available in Ash Gray, White, or Yellow.

Price: $20.

SCIENCE! T-shirt
Comes in Adult and Youth sizes.

"SCIENCE!" spelled out using the shapes of various science-related items.

Price: $20.

Science is Awesome T-shirt

Dinosaurs, tornadoes, DNA double helix, and more. . . How could science not be awesome?
T-shirt is Navy Blue.

Price: $20.

Quadratic Formula T-shirt 3

Available in men's and women's sizes.

The quadratic formula with a diagram of a completed square, and the phrase "Solutions for the completely square."
Available in Black, Ash Gray, Violet, Yellow, Stone Blue, Navy Blue, or Orchid, depending on size.

Pricing: $20.
Blemish sale item: Stone Blue Small for $12.

Properties of Math Dept. T-shirt
Printed on Front and Back.

Front: "Properties of Math Dept."
Back: "Properties of Math Department", followed by various additive and muliplicative properties.
Available in a variety of colors.

Price: $20.

PIRaTe Periodic Table T-shirt (Small, Large, XL)
Sizes Adult Small, Adult Large, Adult XL.

Price: $20. .

Pi Symbol Glow T-shirt
Glows in the dark!
Comes in Men's, Women's, and Youth sizes, and in Men's Long Sleeve.

Price: $20.

Pi By Numerals Math Geek T-shirt
Available in Adult Large and 4XL; Women's 2XL; Youth Small (6-8) and Medium (10-12).

A few thousand digits of Pi, arranged so that you can read them in continuous order through the shirt, printed in the form of a Pi symbol. Available in Men's, Women's classic fit, and Youth sizes.

On and On Anon Infinity Math T-shirt
Available in Men's and Women's t-shirts.

Front: "On & On Anon... The Infinite Step Program for the Compulsive Counter". Back:  Proud to Say "I Count" ... A Lot". .


Price: $20.
Just Solve It T-shirt (Large only)

For those who make algebra too complicated.
Small Print: "y'gotta parabolam?" And "y? =because it's there."
T-shirt is Ash Gray or White. Currently available in sizes Large and 2XL only.
Blemish sale item: one Large $16.