You might go direct to davinci and have them US postal service them to you - price is $32, package is tiny so you should be able to get it in a $2 USPS envelope to EU and go under customs radar.
SJS's are nice too - the vbrake one is smaller than most others which helps inserting it inline between noodle and clamp.
But more interestingly - supposedly (source: frame maker that won't specify) there is a Taiwanese source for these that are very inexpensive. I'd be interested in buying a large quantity and selling out inexpensively if someone can find this - I've tried a bit with no luck. $10+/each for these is too expensive, but they're too useful.