Diy Pokeball Costume . These are a fairly simple props to make. Halloween is right around the corner! DIY Pokemon Ash Ketchum Costume & Pokeball Candy Bucket from www.justalittlecreativity.com Using simple garments such as a pajama top or sundress ensures that the costume is measured to fit perfectly. A little less serious (probably on par with the ditto costume), this is probably going to get the most laughs of any other costume on this list. Halloween is right around the corner!