Pill bottles as geocaches

Since I've not been feeling to well lately I'm coming up with quite a few prescription pill bottles. Does anyone know if these make good micro cache containers once cleaned out and labeling removed. These bottles are the orange kind with childproof screw-on lids. Thanks!

I've found plenty of them. The large ones work really well it seems like. They seem to be pretty waterproof. I just ran some through the dishwasher the other day and painted them for better camo.