Cooling;a bigger Version of the dnail Polar Shifter,
https://www.ebay.com.au/itm/Semicon...e=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649
This size but neat and being able to heat as well (i am sure peltier plates can be switched to warm too), some will say, 'Just use a plate from the freezer etc'
I want everything at a workstation, not doing trips to the fridge(except for beer refils).