Here’s a cool site that has some free DIYs such as sneaky counterfeit detector, sneaky boomerang,
sneaky survival watch, and more…
Cy from sneakyuses.com writes,
“Sneakier Uses for Everyday Things has a science reuse and conservation theme illustrating how we
can do much more than we think with what we already have.”
Thanks Cy for the info~ 🙂
There’s also a Youtube energy saving DIY competition,
you can read about it in Make.