Going to england. Anyone know where I can get small bumpers overseas while I am there?

Like the heading says I am going to london for a lil while and would like to hook up with a few sets of euro small bumpers. I would like to spread the wealth....all I need to know is where to get the hook up and I might be able to bring a bunch back depending on the price difference between here and there....
Let me know if you know where I can find um...
Josh