THE SCIENCE TeeCHER :: Pi Day Stuff

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.

Pi Day Stuff


Pi Day T-shirts
29 products

Pi Earrings
2 products

Pi Ties
2 products

Products

Sort by: Product Price Default
Math Power Pin

15/16" (24 mm) diameter.

Price: $5.

Pi Lapel or Tie Pin - Sold Out

Actual height 1/2 inch (13 mm).
Tie pin has chain and bar for attaching tie to front of shirt.
Handcast in USA from lead-free pewter using renewable energy. Posts, chains, and bars of stainless steel.

Pricing: Lapel Pin $6. Tie Pin $8.00.

Apple Pi math earrings - Sold Out
One Apple, one pi. Made in USA from lead-free pewter using solar energy. Hooks of stainless steel. $15.
Flaming Pi Hat - Youth
A flaming Pi symbol embroidered on an 8 inch high hat. Made of 100% wool-feel acrylic. Blue or Pink. $15.
Pi Earrings - Sold Out
BEST SELLER!

Pi design is 7/16" wide x 7/16" high (11 mm wide x 10 mm high).
Dangle style.
Handcast in USA from lead-free pewter using renewable energy. Hooks or posts of stainless steel.

Price: $15.

Apple Pi T-shirt (2XL, 4XL)

What do you get when you divide the circumference of an apple by twice its radius?
Apple Pi.

Price: $20.

Cherry Pi Women's Math T-Shirt
Cherry Pi: The first nine digits of Cherry/Lemon/Apple Pi. $20.
Chinese Pi Women's Tank Top
The Chinese symbols for "Circle Circumference Ratio", i.e. Pi. $20.
Easy as Pi T-shirt - SOLD OUT
As seen on TV in the Numb3rs episode "Atomic Number 33".
BEST SELLER. Comes in Adult, Women's, and Youth sizes.


Price: $20.
Key Lime Pi T-shirt (4XL only)

Key Lime Pi T-shirt features a key, a chemical formula for lime, and the Pi symbol.
Black 4XL only.

Price: $20.