I've developed a bit of a collection of books with creative prompts - some of which I've worked through from start to finish, and some of which I dip into when I'm feeling stuck. They can help get projects going, but they also encourage the practice of creative play, which is super important. Creative play is anything that gets you energised and feeling good about making stuff. Something that requires some effort but isn't too challenging, and that stretches your perceived creative capacity. It can be a warm-up to other activities, a springboard to starting something new, or the purpose itself.