This is a cute trick. Create a secret hiding place that a burglar will never find. The easy instructions may be found at http://www.instructables.com/id/Potted-Plant-Secret-Compartment.

Hiding things in plain sight is often the best way to keep them away from burglars, neighbors, or from electricians, plumbers, carpenters or others who visit your home. Having a big safe or anything similar is a great way to advertise, “Hey! There’s something valuable inside.” However, hiding the valuable item(s) in a discreet location often is more effective.