I thought it was hard to roll the dice into the dice tower made/remixed by Alaorath so I made an added scoop that fits over the top ramp. Makes it a lot easier. It also will still fit into the box with the insert posted by Fuchsr as long as you don't glue it into place. Let me know if it still fits snug to the tower when snapped into place. I made a minor adjustment after I printed it. Look in the pictures and you will see the back piece of my tower is not flush, Hopefully the adjustment will fix this. Enjoy.

Dice Tower by Alaorath: https://www.thingiverse.com/thing:4017612
Insert by Fuchsr: https://www.thingiverse.com/thing:4167017