Just thought what would be really cool - a hollowed out light sabre handle/pommel (i.e. just the metal bit, no beam extended) although it might be a bit too big. Maybe they do reduced size ones.
I just had to check. It turns out that I have a couple miniature lightsabers — the handles originally held a small package of M&Ms (broken into a powder, naturally). Unfortunately, the hollow in the handle doesn't look big enough to hold more than about half the dice, so it wouldn't work.
Nonetheless, I felt the need to include a picture.