Well unlike Bill and Alan, I guess I went the wrong way, Summit racing sell a cool looking plastic catch can for about $20 (it is even red, i.e. worth 4-6hp). I think Summit has in the coolant catch can area of the catalog. It comes with a quite little K&N style air breather. Before that I had a plastic 1L water sample container from a lab. Mounted with a large hose clap.

ron vaughn

Alan +$0.97
Bill -$1.00
Ron -$20 (but mine is red)