The Funky Monkey is a simple, hanging housing stop for front and rear center pull and cantilever brakes. This simple part is brought to a whole new level with our renowned machining prowess.
www.paulcomp.com
Or I've got this one on my cx bike. No idea of brand but it's 1" and if you can find one it will no doubt be a fair bit cheaper than a Pauls. If nothing else it proves options exist. If you are in the UK check SJS cycles, it's the sort of thing they will have.