Re:Suggestion: Integrate Physical Dice (Score 4, Informative)

Dice are already marked. They have pips or numbers on them. Opposite sides add up to the number of sides on a dice plus 1. So if the number 1 was on the bottom, number 6 would be on top.

Granted, this works for some dice, like d6, d8, d12 and d20. d10 are odd/even, and equal out to one less then the total number of sides. So 2 and 7 are opposites.

d4s are usually easy enough, but depend on the type you get. The one I have has the number on the top, and the number doesn't appear on the bottom.

Basically, the point is, most die follow a set of rules for number placement. If you can read the bottom of the dice, you can easily tell what number is opposite of it.