Take can pineapple and drain juice from it, leaving pineapple inside can, Discard juice. Take jello mix it with boiling water, mix well. Pour into well drained can pineapple, put in fridg. over night. To remove mold put can in hot water for a few seconds then open bottom end of can and push mold out. You can put cherries down center of pineapples before you put in fridg. when done slice up and serve!