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 Small

Products

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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.

Get Radical T-shirt
Available in Men's, Women's, and Youth sizes.

Upper left chest: "Get Radical" with stylized square root sign.
Back: "It's OK to like Math"

Price: T-shirts $20.

Just du It Calculus T-shirt (Sm, Med, 4XL)
Adult Small, Medium, 4XL.

Just Integral du It -- for those who make integral calculus too complicated. T-shirt is Black. Pricing: $20.

Knowledge Equals Power T-shirt
Front upper left chest: "Know Math"

Back: "Knowledge: The means by which one gains the ability to control one's own destiny. Knowledge Equals Power."

Available in Adult Small and Youth Large only. $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.

Infinity T-shirt
Available in Men's and Women's sizes.

Front upper left chest: Infinity symbol surrounded by the words "Contemplate the infinite"
Back: "With Math, The Possibilites Are Infinite"

Available in Men's Small, Medium, and 2XL; in Women's Black Extra Small, Large, and XL.
Price: $20.

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

Price: $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.

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.

Neutrino Physics T-shirt (Small only)

Price: $17 .

T-shirt is Black. 100% pre-shrunk cotton.

Available only in Small.