magazines and music for the waiting room, would your local dentist be able to give you some leaflets, toothbrushes,{not toothpaste its toxic but perhaps you could just have the empty boxes] empty plastic cups to pretend to "swill"paper towels to wipe-pictures of teeth, smiles, toothpaste ,brushes as posters or perhaps the dentist would give you some free. old laptop or pens paper for the assistant to record how many teeth you have, safety mirrors to check your smile, old phones/typewriters pens paper for the receptionist, old forms for the children to sign. etc etc hope this helps but I'd definitely see if your local dentist could give you some freebies