I doodle and do Zentangle. I buy used books at Goodwill or Salvation Army resale stores that look interesting, read them, then use the book as my doodle or Zentangle paper. I also watch YouTube sites of artists that give me ideas. I saw this one today, https://youtu.be/pkbJemDY-00 It gave me an idea for a carving of a pen with "ink" pouring out of it.