I find chinchillers at the thrift stores all the time! They are usually labeled as trivets, or cooling stones. Granite squares that are surrounded by plastic that are used to keep hot pots and pans from ruining your counter tops. Pop the plastic off and viola a chinchiller. I randomly came across one once and seem to find them all the time now. Usually for $1 or $2 and I snatch them up. I have about 5 now, just in case one breaks, or to have one or 2 in the freezer.