Hamburg - Sharing Rides, Tickets - Travelling together
Here you can find tickets, group tickets, rides or travel companions as well as anything what matters for travel and transport.
In Germany there are websites for sharing rides for hitchhiking etc.. I suggest you can post here links to your offers from those places. In this way you can try to find a couchsurfer for your offer. However we should keep in mind that those offers are not for free - you also share the costs or pay the ticket of course!
More info as it develops!