This is from a 1992 Kellogg’s Rice Krispies give-away. Makes for a novel magic collectible.
The outfit consists of a piece of red cardboard and two plastic yellow rings, plus a reflective design square of paper. The rings are placed onto the red piece of cardboard and a borrowed coin is placed beside the rings. The reflective square is placed on top of one of the rings and then that ring, along with the reflective square is placed over the coin. When the reflective square is lifted from the ring it is seen that the coin has completely vanished. If the performer wishes the coin can be reproduced.
Very easy to do. No sleight of hand required.