A robot Zamboni would seem to be the ticket to make Europa habitable.
There we could hold the Inter-Planetary Stanley Cup finals. ;^)
I hope you'll join us on Mars until they get the ripples and crevasses leveled out, EH? Since you'll be further out from the Sun you can be the Great White North...when you tell someone to Take OFF, eh? be sure they got their Tuk on...Beauty!!! I appoint you Franchise owner Numero Uno in the ETHL. Extra Terrestrial Hockey League...
Hey man...Keep your stick on the Ice, be it Carbon Dioxide, Methane or good old DiHydrogen Oxide!!!