On Rumpelstiltskin:
that particular name is from German,
Rumpelstiltzchen,
having nought to do with skin anyplace --

"stiltzchen" is little stilts or poles.
There is also a "rumpelgeist," close to a "poltergeist."


And as was made evident when
Once Upon A Time was broadcast internationally,
Rumpelstiltzchen goes by a wide and wild variety of names.

Tremotino    --    Italy
Tracassin    --    France