and pay towards fuel / landing fees etc!
wooop wooop wooop....you cant use the word 'pay' on the private flying forums, its sets alarms off!
Of course you can 'share costs' ......I cant help unfortunately as I am to far away from you but have you visited your local airfields and had a chat to anyone lurking around a C172, put notices up on the notice boards there? it may help in your search for shared cost flight!
Good luck.