In addition, back when I was teaching grammar school, I was sometimes called on to teach art even though I have no art background. Doodles and doodle projects came in handy on those days when I was having trouble coming up with an idea. Doodles tend to be the type of project that anyone can do. There is no wrong way to doodle, and those were always fun projects.
I even like watching other people doodle, as in this video:
But maybe you'd like to do something more practical with your doodles. One idea is to decorate a gift bag. Buy plain white craft bags or gift bags and decorate away.
Or...there are doodle mugs. They can be purchased.
Or you can make your own. Here are some written instructions. And here's a video. (Note:the mugs have to be baked and they can only be hand washed).
I used to have my students make doodle name tags which could be laminated and kept for future use. I'm sure there are other ideas. If you can think of any, post them in the comments below.