How to make fake routainers

First things first you must have the little candy soda bottles. Next chop the top off of them and then drink all the juice out.

These are the candy bottles

Then either boil water or use very hot tap water. You are going to take the bottle and run it under the water and start flattenin it out so it's about as big as your mouth.

Once it's about that big take it and press it against the top of your mouth and against your teeth until it's is firm in that position and then take it out and let it dry for a little while.

Then tada you have yourself a fake routainer