Suction Central

Many advanced wet platers recommend using suction cups for holding their glass. Rubber suction cups give 2 benefits an easy safe grip on the glass and it prevents transference of heat through the fingers which can cause problems in the process. These cups also allow me to be a cat burglar in my spare time (always fancied that!).
https://www.youtube.com/watch?v=_T9twKn8x5E

Here are the suction cups I picked on eBay, all quite cheap. The double suction cup is for the 35x35 glass ambrotypes of the future.