< Combination Lock Piggy Bank>

Keep your coins safe and your piggy happy!

Basic Sketch of Toy

Never smash your kid's piggy bank again! The revolutionary combination lock piggy bank safeguards your child's coin collection while still providing easy access via a combination dial locking mechanism. Two dials display the numbers one (1) through eight (8) in regular and roman numerals, respectively. Match up the numbers accordingly, and the pins align with the slot to open the top of the piggy bank.

Your kid will learn about basic pin-in-slot locking mechanisms while practicing their memory and associating roman numerals with the common notation! The combination lock piggy bank is molded from lightweight, durable, but inexpensive plastic for a long lasting toy that will put more coins in your piggy bank, not keep them out of it.

Toy concept 1 | Toy concept 2

Konstantin Vidensky
Carnegie Mellon University
January 23, 2007