Get a fun snap and some stink bombs carefully tear the bags open then mix in some sugar to the powder then tip the powder on to some tissue paper and tie it up then put it in his bag near his zip or a place where it will get hit and then when it does boom crazy life haxs Did takes like 20 times to get right I'm like a pro use a sewing needle to tear it and put the fun snap and powder on top of the tissue before you tear the bags