A hobby that doesn't create useless items?

I need a hobby to occupy my hands and brains, crochet and the likes looked appealing....but what to do with the produced items? I have no friends and my family treats me as a stranger, they won't want anything I've made. My wife and her family will only need so many of whatever I make. Already do crossword and word searches and the like...suggestions? Thank you in advance for anything suggested.