Take the original prize out of a Cracker Jack box and then wrap the ring up as the prize. Just make sure you open the bottom of the box carefully then take the bag out and open one side, empty out all the cracker jacks, then place the ring in the bottom, pout all the cracker jacks back (you can add some paper or something at the top so it doesn't settle too much and the ring gets lost in the bag), then staple the bag shut. Then the place the bottom of the bag (where the ring is) in first, close the box and glue the bottom shut. You can also attach a cute note if you like.