Crazy Aaron's Liquid Glass Thinking Putty makes a great desktop toy for those times when you don’t feel like working. But as the folks at VAT19 discovered, the putty also makes for a terrible substitute for water when it comes to bathing.

Toy stores are exciting places to visit, but it can be tough to find high quality toys that satisfy green and ethical standards. Since ‘eco-friendly toys’ is not a mainstream industry, it’s usually necessary to look online in order to find such manufacturers. Here is a list of ideas from cool companies that care about production methods. Some focus on domestic (North American) production, fair trade certification, and sustainable sourcing, so choose according to your priorities.

Play-Doh's all well and good when it comes to entertaining a toddler. But when you grow up, you need science to deliver something a bit more captivating. And what could be a better way to waste away the hours at work than with a handful of crystal clear putty that looks like liquid glass? READ MORE

This is a fantastic stocking stuffer idea, as well as a great budget-friendly, science-savvy gift idea for all ages, for any occasion. READ MORE