Has anyone made their own gel rime pack? Do they work?

Has anyone made their own gel rime pack? Do they work?
Yes I have and they do work. Using Equal parts wet and rubbing alcohol fill up what ever size closure lock back something like half mode. I had some trouble beside leakage so I double bag some and other I went posterior to the store and bought the bags that have their own double seal.
yeah they work. that's what they used surrounded by the daycare I used to work at.