I was more worried about the wood splintering and the tannerite sinking than anything else!!! The styrofoam should let misses pass on through, at least the first few:-)
BTW I painted the styrofoam a yucky green so that the white jars would stand out. It was the only can of spray paint I had that would work.
Regards
alfa6 ;>}
Salsa is enroute!