I sketch. I sketch a lot. I used to sketch even more than now.
I have sketchbooks and sketchbooks full of doodles that will never come to fruition. No biggie.
Looking back at it, some of it is pretty wonky, and/or juvenile, or stuff that others have already brought to market.
Here's a previous update with similar stuff.
These were done more than a few years ago. Just a little traipse through the archives.