Cuckoo Clock

The is an OoS: in.

Location and Uses
The proprietor of the OoS:, OoS:, is working on what he hopes to be the best OoS: the world has ever seen. However, he cannot complete it as he lacks a OoS: to serve as the Cuckoo. Should OoS: bring him one, he will exchange it for some OoS: as part of the OoS:.