RE: Onion Dispensers
Looks a lot more costly than a plastic spoon. Why not just spray the onions with Black Flag Pest Spray to keep the pests off?
Seriously. There are tons of restaurant supply houses on the Internet. Find some of them and do your own homework and you won't have to put up with smart-ass replies like this one.
You have Superior, Fadel's, the Restaurant Source, U.S. Foods, Rapids and many more. They all have online catalogues and a search feature.