Get your gifts shipped before the holidays! Domestic orders placed before December 14th using UPS Ground or December 16th with USPS Priority Mail to have your order delivered by December 24th.

Gifts Under $15

Celebrate the irrational, transcendent, and never-ending ratio with our Pi (π) Day collection of gifts! You’ll find pi-themed jewelry, baking accessories, apparel, and more.

Celebrate in-person: Join the 37th annual celebration of Pi Day on Thursday, March 14 with free pie, a Pi parade, live music, and more!

  • Sort by

  • Availability

  • Price

    $
    $

  • Age Group

Sold Out
A black g-clamp with a divot on the left side.

G-Clamp Bottle Opener

$ 12.00
$ 12.00
Four boxes with images of crystal structures in different colors: Green, blue, red, and multicolor.

Colorful Crystals Kit (Assorted Colors)

$ 4.99
$ 4.99
A purple stuffed toy with large round eyes and eyelashes.

Giant Microbe Kissing Disease

$ 14.00
$ 14.00
A blue stuffed plush toy shaped like the common cold virus. It is blue, round, and has large black eyes.

Giant Microbe Common Cold

$ 14.00
$ 14.00
A gold enamel pin depicting a slice of pie with the symbol for "Pi" on the top. The filling is orange.

Pi Pie Slice Pin

$ 12.99
$ 12.99
An orange and red colored poppy flower enamel pin on a black cardboard backing.

California Poppy Pin

$ 13.99
$ 13.99
Gold enamel pin in the shape of a robot with a blocky head, gray body, and red details.

Robot Baby Pin

$ 12.99
$ 12.99
Tan heather sock with assorted butterflies printed all over the sock.

Butterfly Socks

$ 10.00
$ 10.00
A white microscope pin with black accents and a silver outline.

Microscope Enamel Pin

$ 12.99
$ 12.99
A green and blue colored depiction of a plant cell on an enamel pin.

Plant Cell Pin

$ 12.99
$ 12.99
A blue oval shaped pin with accents of dark blue, yellow and green.

Animal Cell Pin

$ 12.99
$ 12.99
An oval shaped pin with blue, green, and purple accents in the shape of a bacteria cell.

Bacteria Cell Pin

$ 12.99
$ 12.99
A motorboat made with wood with a black sail and the yellow motor kit sits on a beach.

Huckleberry Make Your Own Motorboat

$ 11.00
$ 11.00
Astrophysics for Young People in a Hurry is a paperback book. It is 9.1 x 6.1  inches in dimension. The cover is white, with drawings of different space-related planets, satellites, asteroids, and black holes appear on the cover in purple, yellow, red, orange, and blue-green.   

Astrophysics for Young People in a Hurry by Neil DeGrasse Tyson with Gregory Mone

$ 11.95
$ 11.95
A 16oz pint glass with scissors, snippers, pincushion, knitting needles, crochet hook, thread spool, and cone are screen printed all around in a turquoise silhouette.

Crafty Tools Pint Glass

$ 12.00
$ 12.00
A 16oz clear pint glass with science tools in silhouette in navy ink.

Science Tools Pint Glass

$ 12.00
$ 12.00
This full deck of cards ( with numbers and suits for actual gameplay) features 26 profiles of women and gender minorities in physics careers—including the Exploratorium's own senior physicist, Desiré Whitmore.

Across the Spectrum: Women & Gender Minorities in Physics Careers Playing Cards

$ 12.00
$ 12.00
Turquoise playing card box with a window to show a lenticular image of a dog. Stack of lenticular cat and dog cards sitting next to it.

3D Dog Playing Cards

$ 9.95
$ 9.95
The background of the sock is blue, there is a yellow lab in a laboratory coat, and laboratory equipment sits in duplicates on the sock; the cuff, toe, and heel are black.

Science Lab Socks

from $ 10.00
from $ 10.00
Red and white box with a window to see lenticular black and white cat image on playing cards. Four playing cards with different lenticular cat images lying in front of the playing cards box.

3D Cat Playing Cards

$ 9.95
$ 9.95
A navy blue sock with light blue on the cuff, heel, and toe; light blue Pi symbols are throughout the sock surface.

Pi Symbol Socks

$ 13.95
$ 13.95
Tin cookie cutter made out of the tin in the shape of the Pi symbol.

Exploratorium Pi Cookie Cutter

$ 3.95
$ 3.95
A black silicone ice cube tray that freezes ice into the shape of the Pi symbol. There are three ice cubes in the form of Pi along a diagonal from upper left to bottom right.

Exploratorium Pi Ice Cube Tray

$ 14.99
$ 14.99
A black sock with white chalkboard style numbers and equations with red toes, tops, and heels.

Math Socks

$ 12.00
$ 12.00