Why not tell the grandkids that you would like to start making some things for them to use in their future lives. Ask what their tastes are and what they would like to have. Ask if they have a place to keep the things you make, or if you should keep them until they need them. It sounds like a great way to stay in touch with the grands, and they will also be more likely to tell you what they would like RIGHT NOW if they know you are looking for projects.