I've just got a mail from Rizzos owner. He is looking for Rizzo.
I placed Rizzo in a cache on the way from Trondheim to the coast west of Trondheim. I visited a number of caches during my trip to the coast. Among these were GC1X760, GC1RH5P and GCWR39. I hope someone will find Rizzo soon and bring him on another "adventure"..
R. Team Rocket