NEW!

Individually hand dyed Tie-Dye Pi T-shirt. Each shirt has a pattern and coloring somewhat similar to the shirt shown, but no two are exactly identical.

Pricing:
Adult Short Sleeve Small, Medium, Large, XL: $22; 2XL, 3XL: $25.

NEW!

Added by popular demand. (Don't get it? Read the shirt aloud.) Printed on relaxed women's fit shirt.

Pricing:
Adult Short Sleeve Small, Medium, Large, XL: $17 .

NEW!

T-shirt is black.

Pricing:
Adult Short Sleeve Small, Medium, Large, XL, 2XL: $17.

The Pi-Lingual tote bag features geometric diagrams for area and circumference of a circle, and a wide variety of advanced formulae featuring Pi, printed on a black canvas tote bag. This design is also featured on our popular Pi-Lingual t-shirt. The tote bag is about 18" long by 14" high by 3" deep.

Price: $18.

Finally, an explanation for non-techies of how to troubleshoot a program, in flow-chart form.
This design is printed on a somewhat lighter weight shirt than our usual heavyweight t-shirts.
T-shirt is Black.

Price: $18.

This cartoon discusses the relationship between correlation and causation.
This design is printed on a somewhat lighter weight shirt than our usual heavyweight t-shirts.
T-shirt is Navy Blue.

Price: $18.

Show your knowledge of really large numbers and search engines with this shirt.

Pricing: $17 to $19

Beautiful images of crystals and finished gems for emerald, ruby, topaz, sapphire, opal, aquamarine, kunzite, heliodor, and elbaite.
T-shirt is Black

Pricing: $17 to $19.

NEW!
E=mc² Equation Tie comes in Black or White.
Price: $10.

For people who are really in their element when it comes to chemistry.

Price: $10.