All the dishes are fastened to the cage, either screwed on or wired on. Anything with kind of neck like the candle holder I twist a piece of crafters wire around and then fasten it to the cage.
Mine will eat most plastics too Jo Ann, but it's the old fashion bakolite plastic they just can't. I drill a hole in it and screw it on.
Small steel bowls are great too, just drill a hole and screw it on.
Yes chinchillagrl I buy them all at thrift shops, my favorite place for chin stuff.