LEGO sets are nothing new, but sometimes, you're left with a bunch of a extra pieces. Before throwing them out, or selling the lot, consider turning at least a few of the pieces into functional key holders. All you'll need is: a base plate, selection of bricks / plates, adhesive putty or pads, a spirit level, and keys on a keyring or chain. Continue reading for more creative ways to use everyday things. Click here for a few bonus life hacks.