I scanned the plastics I had in with my printer and started mocking up some simple art using a CC vector playing card art pack I found online, then just printed them out on paper for a test
The paper didn't really turn out that great. Colors were very muted compared to how they look on screen, and without being glued to the plastics it still sags a bit and looks a bit messy, but they still really help pull the playfield together. I'd like to try to make up a few more paper bits to put on the playfield itself, at least where my hand written rules currently are, but that'll have to wait until I take the plastic off again. I've basically given up on ever having full playfield art for this, but I think a splash of color here and there should be more than enough. Once I've got the rest of the plastics made/mounted and drawn up I'll get them printed professionally somewhere for some better colors.