Here’s an intriguing proposition from toymaker Arvind Gupta: Could we use trash to build inexpensive learning tools for children? In this video from Ted.com, Gupta demonstrates how several of his toys are built. His passion is as impressive as his inventiveness.

Seriously: This man is the MacGyver of toys.

With nothing more than a few odds and ends he’s managed to build a variety of toys that teach children basic scientific principles. Visit his website for a full list of toys, along with the materials you’ll need to build your own copies.

Check it out and give us your feedback:  Could this toys-from-trash concept change the world? Can you think of any similar projects?

And be sure to catch his impromptu straw concert about 10 minutes into the clip. In my opinion, it’s one of the coolest parts of this presentation (although that velcro drawing pad takes the cake).