Yep, those are potato chip bag -
Girl Scout leader was the first to point out this particular recycle craft project to me. Thanks Christina ;)
*Step #1 ..... eat - enjoy - empty the bags (make sure to get all the chips out, if there is a little bit of oily residue that doesn't seem to effect it, but the chips need to be all gone)
* Step #2 ..... Lay them out flat on an older cookie sheet (I say older only because as the chip bag shrink some times it leaves a little bit of residue on the cookie sheet that is hard to get off without scrapping. I tried lining the cookie sheet with foil and it did NOT work at all.)
* Step #3 ..... Place in a oven that is set to 200-225 and watch closely. After only a couple of minutes it will start to bubble and then shrink. If they are taken out early they will have a crinkle look to them or they can be left in till they flatten out more completely.
(Kids love to watch them shrink it is the magical part)
* Great uses for shrunk down chip bags - my daughter used a hole punch and strung it on a chain, she wears it to school allll the time. There are several exchanges and swap sites that I am a part of and I have used larger "Grab Bags" and put a ribbon in the corner to make it into a bookmark. If the really small candy wrappers would work better, I would love to make a charm bracelet for my kids. I have also used them for scrap-booking but they could be used for any kind of craft embellishment.
Lots of options, a fun and easy idea.