Find/create sprites without being an artist (combine harvester sprites needed)

[Cooper]

Any ideas on how to find or create sprites without being a skilled artist?
Usually I find free to use sprites around the web, or sometimes I draw them myself if they are simple. But this time i want to create a 2x2 unit (combine harvester), which I am not skilled enough to draw, and I could not find any usable sprites anywhere.

Ideas?

[Solarius Scorch]

I'm not a skilled artist, and my sprites are Frankensteins.

For people like us, if a new sprite is absolutely necessary and we don't want to ask a pro, the next logical step is to choose something that looks vaguely similar and then keep attacking it with a brush until it starts looking like what we want. It's essential to use the right spritesheet, which can be downloaded from here: https://buscher.eu.pythonanywhere.com/hwpbuild