Useless pet

Like with the previous one (as I drew them at the same time) I treated it as word association and the thing I thought of as the most useless in the world (something not in my house but widely known) was a pet rock. This was relatively quick to do but when I had finished colouring I thought it still looked a little flat. So I got a photo I took of the mold growing in my old house (originally taken because I thought if I inverted it, it would make a star effect) and inverted it and applied it as texture. While I'm not overly proud of this drawing I am pleased with how the texture turned out and it has taught me that I should try using textures more often.