I have a post pertaining to using plastic bags to make prop spikes and teeth. That has been my latest interest. With this post, I may try woodburning. I know I have a woodburner in my mountain of art supplies somewhere. If you wanna expand a bit, research sacred geometry, electrolysis (I think that is the name, it talks about burning wood with electricity), and zentangle. The last one might be a bit difficult to do on wood, but I think of it when I think of mandalas.