kushcabbage
vapor nerd
oh for holding stems, I miss understood, I was talking about using teflon tape to keep my metal stems together, and make a tighter seal on the heater. edit: (I'm not sure those battery caps would leave a residue on something hot like the glass. Do not use them myself, see stickstones reply below) Try using a 4 inch or so square piece of baking parchment paper, slide it over the cover, and rubber band up the neck sealing the high temp paper over it.