I would naively say that customs etc are the recipient's problem. After all, a lot of eBay sellers ship worldwide, quoting outrageous shipping times to cover their asses (like 60 days to Russia). But hey, you are the boss!

Just one more question. Should someone, purely hypothetically, volunteer to play Santa Claus and donate 3 (or 30) times on behalf of poor orphans from unsupported countries, would that translate to 3 (or 30) separate units?