@Rachel i can't find one that's a side view unfortunately
Can you make the picture yourself instead of finding one?
Make little C shaped "corns" to come out of the shoot? Or remove the spikes on the front and make them the shapes of C on their fronts so it's like "nnnn" across the front but with c's instead
you could add another rectangle to left side of the window border?
What if the image was from the side instead of the front? Then the wheels could be Cs