@Cajonpassfan If you have a Michael's nearby, go into the paint section where the cans are all locked up and ask about Floral Spray Paint.
They have all kinds of different natural colors.
I'll try to remember to snap a photo of a tree that I sprayed some of the Orange on to mimic late Summer/early Fall foliage.
Much more natural than using colored foam.
Well, that was a wild goose chase; our Michaels has diddly squat. The Dick Blick catalogue has a much better selection, although they are out of the one color I need most
The quest continues...
Otto