I have designed a game that requires custom dice. Specifically, I've wanted to create dice approximately 3" in size, for party games. My first round of making dice used styrofoam and paint. After several games, the dice chipped - as to be expected.
The second attempt at custom dice used foam dice from Oriental Trading painted over to fit the needs of the game. These, too, had paint coming off.
As Oriental Trading and other retailers have proven, however, it is possible to have permanent images affixed to faces of a cube on foam dice. Wood, metal, and other hard surfaces are undesirable as they are too hard for use indoors. What ways are there to create dice that look like those found on Oriental Trading?