In preparing for my new campaign, the PCs will no doubt be spending some time in the casinos of Nar Shaddaa. The rules provided for Sabacc and Hintaro work pretty well, but I wanted something random and not relying on skill for Lugjack. The machines in casinos are set up so that the house wins over time. The table below represents a machine that would pay out 88.4% for every credit put into the machine.

Edit: I guess I should clarify that you use 3 proficiency dice to represent the wheels, and it pays on matching faces (pair or 3 of a kind).