carpe skiem is a take off of carpe diem, which is a famous latin saying meaning 'Sieze the Day', althought 'skiem' doesnt actually mean anything it just a take off of 'diem'.
It might be sick if you got the the phrase 'Live to Ski' like rightside up then you had the artist reverse it and have it say 'Ski to Live' upside down, so it kinda looks mirrored over but still both sentences make sense. i'm sure the artist could think of some cool way to do this if its what you wanted.
i'm getting a straight tat saying 'RISK' on my back left shoulder in some cool font eventually.