Holiday Sale – 20% off

It’s time for our annual sale! Take 20% off most items with the code HOLIDAY20 (ends on Tuesday 12/2/2025). The coupon code must be entered and applied in the shopping cart. The sale includes all our puzzles including custom puzzles and most jewelry. However, certain items are excluded from the sale including engagement rings, wedding bands, and Radiolaria sculptures. 

It’s crazy to think we’ve been doing Nervous System for 18 years now. This has been a challenging year for small businesses like us. We’re deeply grateful for everyone who chose to bring a piece of our work into their lives. Your support is what lets us keep inventing weird and wonderful things. 

Gift Ideas

Big Puzzles with 400+ pieces

Custom Puzzles

$20 mini puzzles

Sterling Silver Jewelry

Stainless steel earrings

Math Puzzles