If you can trace a Norse design onto leather and carve it, why not a lunar landscape, LOL?
I can't express how much I love this idea.
Pricing things is understandably difficult when you're starting out- but once you've got your process down then you should be able to gauge how many hours a project is worth. Then, determine how much you'd charge hourly for labor + cost of materials. I would check out comparable pieces on etsy and price your products competitively but fairly (to you, as the artisan).
Feel free to beef up your prices for the Chonowitsch smokers though ? sorry to be crude, but the idea of spending that much on a pipe makes my asshole pucker.