Hide it with Harley! What do you think Harley keeps in this? Whatever it is, you can bet she'll use it for no good! That said, you can make this colorful Batman Harley Quinn Checker Badge 6 oz. Apothecary Jar your own and put whatever you like in it. Won't that be fun? Hand wash only. Not dishwasher safe. Do not microwave. For ages 14 and up.