The performer displays a row of colored chips along side a prediction. He asks for a volunteer to freely mix them around. He turns over the prediction to reveal that it's a puzzle with some missing pieces. Inside a small bag are those missing pieces and on the back of each piece are colored stickers. Each piece perfectly fits the vacant spot on the puzzle according to how the participant arranged the colors.

no magnets or parts that slide off
free choices, nothing forced
multiple outcomes
everything examinable
pieces are not interchangeable
instantly repeatable
additional ideas presented