I started here while playing geoguessr a while ago. Let's just hope google doesn't notice too quickly because what is probably a broken camera looks quite nice :)
Awesome TED Talk: Jay Silver: Hack a banana, make a keyboard. About the things that happen if you combine everyday objects with each other in unintended ways, play around and then add some electronics on top. The MaKey seems to be a bit on the pricey side, though :(