I spent four weeks on a few complex projects and post a picture of a fish that took me a couple of hours to make two of them and everyone comments on the fish. I am finishing this fish tale on this post. The plans wanted me to use a aniline die. at $7 an ounce, I don't think so (There are nine colors). I read in one of the books that food coloring is a good way to stain wood. So that is what I used. Well water makes wood swell and these were tight fitting pieces anyways. The good thing is that the fish is now colored and I only colored one of the fishes. The bad new is if the fish gets wet the colors will run. This is not a good puzzle for kids that put everything in their mouths. It would be like sucking on a permanent marker. I need to clear coat it still and with the weather I don't know when I can do that. Not bad for a weekend project that was purely experimental.