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.

For Adults

  • Sort by

  • Availability

  • Price

    $
    $

  • Age Group

A gif image of a solar-powered Swarovski crystal spinning at the bottom of a see-through colorful gear motor.

Solar Powered Rainbow Maker with Swarovski Crystal

$ 31.99
$ 31.99
A lava lamp with rainbow colors painted on the outside goes from purple at the bottom to red at the top. The white lava changes colors as it moves through the green, yellow, and red on the glass surface.

Rainbow Lava Lamp 11.5oz

$ 29.95
$ 29.95
Sold Out
Various pieces of paper with rainbow motifs are scattered around a picture of a person with these rainbow tattoos pasted on their shoulder and neck.

Tattoo Rainbow Set

$ 15.00
$ 15.00
Prolate ellipsoid made out of sold non-magnetic aluminum that, when one spins on its side, will flip upright and continue to spin. It sits upon a flat round mirror encased with a black rim.

Aluminum PhiTOP

$ 20.00
$ 20.00
A golden yellow background with numbers and circles arranged around the cover.

The Big Bang of Numbers by Manil Suri

$ 22.00
$ 22.00
Sold Out
The Future of the Mind by Michio Kaku

The Future of the Mind by Michio Kaku

$ 18.00
$ 18.00
Front cover features a section of a city built with Lego bricks. The city includes skyscrapers, a crane, a cruise ship, rocket, underground subway, and body of water.

The LEGO® Engineer

$ 24.99
$ 24.99
Front cover shows image of various crochet cat projects you can make using this book's instructions.

Amigurumi Cats: Crochet Sweet Kitties the Japanese Way

$ 17.99
$ 17.99
A beaker with the Exploratorium logo printed vertically.

Exploratorium Shot Glass Beaker

$ 8.00
$ 8.00
A pair of temporary tattoo papers depicting a cat wearing pink heart sunglasses and a pink tee with a rainbow.

Rainbow Kitten Tattoo

$ 5.50
$ 5.50
Two pieces of paper, each with an infinity symbol colored with rainbow colors.

Forever Pride Rainbow Tattoo

$ 5.50
$ 5.50
Simply Artificial Intelligence

Simply Artificial Intelligence

$ 17.99
$ 17.99
A multicolor bracelet consisting of multiple colored strands is being braided.

Third Millennium Thinking: Creating Sense in a World of Nonsense

$ 30.00
$ 30.00
Sold Out
A white cover with watercolor illustrations of a red bird and a wolf's face.

The California Field Atlas

$ 45.00
$ 45.00
"Not Necessarily Rocket Science" is a hardback book with a black cover; Kellie Gerardi is on the cover wearing a Final Frontier Design orange spacesuit.

Not Necessarily Rocket Science: A Beginner's Guide to Life in the Space Age by Kellie Gerardi

$ 19.95
$ 19.95
A book cover with boxes with different colors and symbols like the periodic table.

The Periodic Table of Wine

$ 18.99
$ 18.99
The Geeky Chef Cookbook

The Geeky Chef Cookbook

$ 16.99
$ 16.99