At the Tinley Park NARBC show there was a vendor that had ventilated lids for Cambro food-service polycarbonate tubs, and also nifty perches (I think HDPE) that fit in the Cambro tubs. I believe they also had cages and racks, but the Cambro tub accessories were what caught my attention (having had food service experience). Unfortunately, I didn't get a business card. They were in the general vicinity of Morelia row. Does this ring any bells for anyone, or do you have hints on who they might be. Usually my Google-fu is strong, but I've been striking out this time.
Mods, if you think this would be better/more appropriate in a different area, please move.