Rusalkas are quite well known to me, american comrade
Even though, from literature, really. They're russian river elfs or nymphs who sometimes drown people I think. I'm quite a way away from Russia, so I never met any
And skellies are a big no-no in China even if it's just an overshigt. They used to have separate MtG art for cards depicting skelletons. If you're looking to sell anything over there at any point, skellies are out.
EDIT: And Tokoloshe are South African - the Havendale brigde is an awesomely flavourfull level ^^