Yo peeps, project help for cad class

I got a project coming up for my Cad (computer aided design) class at my college and here's the deal. I need an assembly that has to have a least 5 parts that i can draw seperately, but when put together, the make a part (assembly). Gotta make detail drawings of the individual parts as well. I really think it would be neat to do something off my car, but i don't know what i could do it of that i could take off, bring into class, draw it and go home. I don't want to take something off my car that i have to mechanically put back on that night. Just something that i can pop off and draw with 5 individual pieces. Something in the interior?

passenger seat?

passenger seat?

Ehh.... Don't know as that'll be kinda odd taking into class. Would be cool though. I was thinking something a little more smaller, but the seat is simple to do, don't get me wrong.

steering wheel?

Cam gear?

oooh.. cam gear...

stock intake tube with airbox?