What kind of habitat do rolly pollies live in?

These creatures are also called sowbugs, or pillbugs. They are technically called Isopods. They basically live in moist soil. To attract them, water the soil in shade, and cover with plastic, a piece of plywood or cardboard. Keep the area moist, and check under the covering in a couple of days. If you still aren't finding them, they can be purchased online. You could try 'Carolina Biological Supply Company.'