Get a plastic bag. That's ALLLLLLL you need, easy already, huh?
Cut 3 strips out of the bag. It's okay if they're not even, mine never are. Haha, mine are... I can't even explain.
Tie at the top, and get something to hold it down while you braid.
Braid until you have a nice length, and have a little left over that's enough to tie it off.
Make sure to tie it off well so it doesn't come apart.
Tie it around your wrist, and...
WAH-LA! Now you have an adorable, recycled bracelet. ( I have 3 on in the picture, they're not long enough to wrap around more than once)