For children, playtime is an essential part of cognitive development. Now, you can give them toys that befit their genius: 3D replicas of the ones that Albert Einstein himself played with.

The LEGO Foundation, Unilever, and IKEA have launched Open Einstein, a site where you can download a 3D printing kit that allows you to make exact replicas of the wooden blocks the Nobel Prize-winning physicist played with during his childhood in Germany. "Play empowers children to create and learn for the rest of their lives," the site declares. "It is a fundamental right for all children."

The 3D printing kit provides designs for 36 toy blocks of various sizes and shapes. Einstein's wooden boxes of blocks, made by the German company Anker-Steinbaukasten, are currently held by a collector named Seth Kaller. (According to his website, you can buy them if you have $160,000 on hand.)

Open Einstein

The 3D printing kit contains model instructions for only a fraction of the 160 blocks in the original set, which Einstein reportedly used throughout his childhood to erect complex structures at home. He wasn't the only famous fan of the toys: Frank Lloyd Wright, Buckminster Fuller, and other notable creatives played with the same blocks.

If you're looking for a particularly erudite toy to nurture your child's mind, blocks—whether Einstein-related or not—are a pretty good choice. The National Association for the Education of Young Children says that playing with blocks can enhance problem-solving skills, fine-tune motor skills, and boost creativity.

Your child may never come up with world-changing scientific theories, but if nothing else, hopefully the set will impart some of the genius's sense of creativity. Or at least his delightful playfulness.