(Needs more work)
GeoKrety ( geo Greek = ‘earth’, krety Polish = ‘moles’) is a service similar to TravelBugTM or GeoLutins, aiming at tracking objects you leave in geocache containers. People move these registered objects (called GeoKrety) from cache to cache and register each move with this service. The trip of each GeoKret is then presented on a map.
GeoKrets are not a trade item, you do not have to put something in the cache to take a GK, and you should not take something from a cache in trade for a GK. If you should take something from a cache, you should make a trade, and you can place the GK.
The service is absolutely free (contrary to TravelBugTM) and easy to use. A GeoKret can be anything, but in most cases it is a small puppet. To create a GeoKret you have to:
Have an account in GeoKrety.org service Register the GeoKret and note down the GeoKret Tracking Code (eg XF3ACS) generated by the system. This code is secret and only you and people who find this GeoKret should know it. Print a label with GeoKret's name, Tracking Code, Reference Number (e.g. GK003F) and owner on it. Attach this label to GeoKret (e.g. a puppet)