I saw this thread and my face did this: 
That sucks. I think we are all ready to beat the thief over the head with our heaviest unicycles (Torker DX 24"… Thats gonna hurt).
But yeah, I hope you get it back!
Have you considered going to your local radio stations and doing a small interview? That type of publicity might get you some anonymous tips. Posting a reward over the radio could also be helpful.
That is a real shame Hans. Why are do people steal stuff like that anyway? I really hope you get it back.
Cheers from California,
Nathan
I hope you catch some fool hurting himself trying to learn on it 
Keep a watchful eye on ebay and any other auction sites that you may have over there. Also, let all the bike shops know about it. The only reasons I can think of someone stealing a uni like that is to try and get money by selling or to ride it themselves. Good luck.
post uni missing sighs everyware