Where would I find a large model of a human? It can be either a medical diagram or mannequin or ANYTHING!?

I have a project in English that requires extreme creativity, and I’ve decided to use a model of the human body. The only problem is that I don’t know where to even start looking for one.

I need a large diagram of the human anatomy..either a poster, or a 3-D model.. or something like that..I just need a big picture of the human body. It can be the muscular system, cardiovascular, skeletal, circulatory, digestive, endocrine, immune, lymphatic, nervous, respiratory, or any of the ones I forgot..it doesn’t really matter which system it’s illustrating so long as it’s obviously a human body.

I have no idea where to go and look! Please enlighten me if you do.