You can try those little 40 dollar fans that use ice and water. They can run off a couple power banks.
I got one. Its not bad. Couple of em might keep an RTT fairly cool.
Something like this...
Some of yall are so organized. It takes me 15 minutes to find the mustard in my Rubbermaid containers :/
I think dividers will be a good weekend project, and we sell corrugated plastic at work!
I love this site. Some great ideas on here.