I went around and found some one day with my gf and some friends. It was pretty entertaining. There was one in Asbury Park, NJ, in a not so nice part of that area, that actually warned not to go there at night, and for females not to go alone. haha
One I've got sitting on the table now is a pill container on a keyring, which is attached to the end of a tape measure. After camouflaging it, I plan on hiding it up high. In order to get it down, you use a hook I will have hidden nearby to hook into the keyring and pull down the tape. When you are done, let it go, and it will go back up into the hiding place.