Tower for rolling dice

I thought I lost all of my money on dice... but now this comes along?

I have got to make one of these...

Actually, the design of this not only makes that unlikely, but also easy to fix. Unless the tower gets grimey, it will be as easy as shifting the tower to force the dice unstuck. If the tower itself becomes sticky, it will need cleaned. However, this should never happen is you should be able to easily avoid anything that would cause stickiness from getting on the tower.