Weighted dice (floater dice)

thingiverse

Weighted/floater dice are dice that are manufactured so that one side is lighter/heavier than the others, which increases the odds that a specific number will show up more often than by chance alone. My version of these dice uses an internal off-center hollow spot in the dice, located near the top of each numbered die. Die 1 has the hollow spot near the side with one pip (spot), number 2 has the hollow end near the side that has 2 pips, and so on. These dice are still going to appear to be relatively random, but will have a higher likelihood of landing with the lighter side up. During printing you could glue a weight (or magnet) in the hollow opening, which will allow you different control of the dice. Please note that these dice are NOT to be used for illegal gambling activity, but are being provided for use in magic tricks or demonstrations.