A twist is that recognizing the winning card is made more difficult by the fact that each card is different.
Cards come in five colors, each with four different depictions of rock, paper, and scissors:
Rocks - a stonehenge trilith, a boulder, an Easter Island moai, or a stone column.
Paper - a ream of paper, an origami swan, paperdolls, or a paper airplane.
Scissors - red shears, blue tailor scissors, green safety scissors, or a tiny pair of scissors on a swiss army knife.