Using a bit of fancy math, I managed to come up with this method for creating wireframe 3D objects using vertices:3D Vertex Rotation
<< Use arrow keys to rotate cylinder.
It works by giving each vertex a value for the distance to the center of the object, the angle to the center of the object(both angle and distance taken from top view), and then the depth of the vertex(or, more accurately, it's Y position in the model). These are all then taken and run through some fancy maths, along with the X rotation of the camera, and voila! You have a wonderful, rotatable wireframe 3D model.
If anybody wants they can try and improve the wireframe drawing(currently vertices draw wires to every other vertex), or try and deform sprites to make faces.
Hope everybody likes it.