I started making one of those model airplanes the other day and got to the point where I was done attaching the tissue paper to the wings. At this point the directions tell you to apply a very light coating of water to the paper to make it shrink. At first I was skeptical and didn’t think plan water could make it shrink, but 15 minutes later that tissue paper had most definitely shrunk to fit the wing tighter. I’m terribly confused at how this works. The tissue paper isn’t coated with something special that reacts with the water to make it shrink or anything like that. It’s just plan old tissue paper.
Sorry if the subject made you think of something else. And get your head out of the gutter!