Mini Metallic Jack-O'-Lantern Yo-Yos - Halloween Toys, Games & Novelties & Halloween Toys & Games Mini Metallic Jack-O-Lantern Yo-Yos. Or put them in goody bags during a costume party. When it comes to trick-or-treating, candy may be traditional, but you can't beat good old fashioned fun! (12 Pack) 1 1/4" Mix these plastic yo-yos in with your Halloween candy and watch them disappear faster than the candy!