SD Toys - 3D Dragon Ball Piggy Bank (Goku on Kinton) Made of PVC. Size: 18 x 15 x 12 cm. Give a touch of originality with this Dragon Ball piggy bank. It is made of PVC, so it is very resistant. The design is so original that you will want to always have it in view. You can use it to save your savings or it is also the perfect gift you were looking for. It has a slot at the top to be able to put the money and an opening at the bottom to be able to empty every time you have it full.