Kit consists of a 3" plastic figure of Ben and 3 Alien cupcake picks. Ben stands on a base that has a button that can be pushed which will make his hand come down to "smash" the Omnitrix watch that he wears on his wrist.
Bring this kit to your trusted bakery, together with an example picture of the Ben 10 cake, and have your cake custom-made to perfection. Alternatively, purchase your favourite cake off the shelf and simply put on the figurines.