There were some great suggestions last year about masks.
Someone--maybe Bunki(?) suggested a single layer of wet paper towels
between the skin and the gauze. I haven't tried it yet.
I've done the casts before, but last year, for whatever reason,
some of my kids ended up with plaster stuck in their eyelashes, and
pieces of skin from their lips stuck inside the masks. I may go back to
it--this time trying the paper towel layer--another year, but for now,
I'm leaving it behind.