Crockpot cooking while travelling

Thanks for the replies. I thought of tape but figured the glue would become soft & not stick when it got hot. Also considered bungee cords and thought the rubber in them might melt from the heat as well. The lid gets quite hot (enough to need a pot holder to lift it) while food is cooking. I am only going to fill it 3/4's full so nothing sloshes out. Might just stick with the foil, my only concern is the possibility of condensation dripping down in between the pot & liner & causing problems.

It will be plugged into an inverter & into the 12V plug that is directly above the sink.

~Diane