Ideas? Yes, go to the library and find a book about technical drawing. It will be filled with hundreds of objects you can draw. Or, look around the room you are in right now and pick an object. You can't really be "that" unimaginative otherwise you never would have made it this far in your CAD class.
A cell phone.
A piece of furniture like an end table.
Wheel and tire.
Sports equipment like a bicycle.