My toilet is clogged don't know what to do?

A couple days ago my son threw the lid of a little teapot into the toilet and I can't remember if I took it out or not but now my toilet is clogged...all the water and stuff goes down so slowly or barely at all. The plunger doesn't really do anything. Idk what to do and I don't want to pay a big bill? please don't tell me stuff about oh you should have been watching your son cause I'm not in the mood for ignorant people.