Here's a question for all those who work with clay a lot. When you touch the clay it leaves a residue on your finger. Wouldn't that residue get all over the frogs feet and belly as they climb the wall? I've covered it in coco fiber before to prevent that problem but then your back to the GS look. Do you guys worry about that residue on the frogs or not? When im working with it ...its a mess all over my hands. I can't imagine being a frog and never being able to wash it off.