Have used the "foil ravioli" trick - and it works great - with a twist. I use Bag Balm (BB) instead of PJ. It's mostly PJ but also antiseptic (used by dairy farmers for udder chafing - no kidding!). That gets multiple use out of the mess - always a goal in my kits. BB is great on scratches, itches, rough skin, chapped lips - you name it - and burns like a champ!