Thanks for the input everyone.

I was actually thinking of getting the 125g peach beanbags, if not the 130g squosh ones. I've seen what juggleart has, and they don't look very appealing.
I've heard from a friend that he's managed to get dube juggling balls sent, but I think this is more an exception than the norm.
Apparently, the balls are "Round, precisely sewn and tightly filled with birdseed treated against dust and pests (non-toxic)."
Sounds good to me, but don't know how it'll sit with customs..