25% 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 25% off, while it lasts!

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 4XL

Products

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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.

Stand Back Try Science T-shirt
BEST SELLER!

Stand back! I'm going to try science.

Available in Women's Small and XL, and in Adult/Men's 4XL.

Price: $20.

Super Pi T-shirt (Small, 2XL, 4XL)
Available in Adult 4XL and in Women's Small and 2XL.

Price: $20.

May the F=ma Be With You T-shirt (4XL, 5XL)
BEST SELLER! Glows in the dark!

May the F=ma Be With You Physics T-shirt features vector diagram with acceleration pattern at the bottom.

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.

Carbon Based T-shirt

Carbon Based and Proud of It! Show your pride at being a carbon-based life form.
Black or Indigo Blue.

Price: : $20.

GeNIUS Chemistry T-shirt (Large, 2XL, 3XL, 4XL only)
Sizes 2XL, 3XL, 4XL only, and a slightly blemished Large.

What do Germanium, Nitrogen, Iodine, Uranium, Sulfur spell to a chemistry geek?
GeNIUS.

Price: $20.
Blemish Sale item: One Large for $18.

Reality T-shirt

"Reality is for people who can't handle the square root of -1."
T-shirt is Black. Available in Women's Premium Hanes Nano Small through 2XL, and in Adult 3XL, 4XL, 5XL.

Pricing: $20.

Calculus Rules T-shirt (2XL, 4XL only)

Product Rule, Chain Rule, Quotient Rule . . . Calculus Rules!
Currently available only in 2XL, 4XL. Black or Ash Gray. $20.

Derivers Wanted Calculus T-shirt (Small, 2XL, 4XL)

Available in Black or Indigo Blue. Available in 2XL and 4XL, and in Long Sleeve Black Small. Also, one Blemished Medium.

Price: $20.
Blemish Sale item: One Medium $12.