Forgive me if this is a stupid question but I am just starting out. Is there a means to practice finger positions and chord transitions on a fretboard without using a ukulele? I was thinking about a mocked up copy of a fretboard without the uke body, something that can be carried almost in a pocket or at least in a brief case and used on the train or odd moments while waiting etc. - just thinking of ways to increase practice time as a beginner. Thanks