I was wondering the same thing Bob. I was thinking maybe to store excess paint or maybe even catalyst hoping it will keep longer? Are you talking like something vacuum sealed or just with a top and seal, but how would you put anything inside without losing the vacuum if its vacuum sealed? I am sure there must be some cans you can by with a seal on top from somebody, or buy something from someone selling canning supplys and vacuum seal your self. You know all those dang informercials that are always on selling vacuum sealers. Or get a nice fitting top and seal and maybe use a shop vac to suck the air out. I remember reading some things on how to do it when looking up vacuum forming. Definitely a new topic, thats for sure.
Weird dream Bob. My mom has told me she had a few times that she was worried a car fall on top of me when she wasn't able to reach me. I've had a few fall off jacks before if jacking up something outside, but luckly never underneath them.