A bit more complicated than roll 2 dice, high wins:
You need 3 dice per player and 1 house die.
Roll the house die and double the number. This is the target number.
Each person rolls their three dice. They take the first, add the second, and subtract the third. If the second or third come up as 6, instead count them as 0. The person closest to the target number without going over wins. What happens in ties is house-rules. My group plays that the people that tie are out, and if there's still no winner, the remaining players go again.
These are d6s, by the way. Might work with other dice though.