How to draw a buzzsaw: Set the drawing thing to mode 2. Then make sure you have three lines and write 62 0 62 as the values of the lines. Then hold your left-mouse button for a moment and you should have a buzzsaw.
How to draw a wheel: Do the buzzsaw stuff, but hold your mouse way longer.
115 elements discovered – Note: This is one of the longest medium badges on the site, but easily achievable with some patience! Yeah, you can complete this with patience. You just have to wait that the hint... you know, "bulb" lights up.