This is a part of a series of nanos camoflouged by various items. In most cases the hint is in the name. This one is an exception to that rule. No hint should be needed for this one.
I was out with a group celebrating Cache N Zoom's 2000th find. We were at the second stage of the multicache targeted as her 2000th find when I spotted this object near the trail. When I said I was going to take it home and add it to my nano series Robin Mohawk suggested an enhancement to make this cache more fun. If you enjoy it be sure to thank him for the suggestion. And be sure to put everything back the way you found it.
Congratulations to RobinMohawk for FTF and to Cache'N Zoom for a close second.