Gromit
International Man of Misery
It's a bit too uncontrolled. Someone could rob the cat.Which makes me think, will it work if you strap a phone to a cat? Some cover a fair bit of distance when they are not sleeping.
However, cellotape a load of phones to a dog, find a nice comfy park bench, get one of those ball throwing devices, keep throwing the ball. Charge people for levelling their eggs. I reason that a medium sized dog could do twenty phones at once.