Simple vase mode dice tube. The cap snaps on and stays there really good. Print in PLA or something more elastic. You probably can print it much faster than I do, but that's just a safe speed. The shape that makes it snap also helps the tube and cap keep the shape. If it's too tight, scale the cap up by a couple percents. I didn't have to, but you can do it if you need.
It comfortably keeps a standard D&D dice set. Cap seems a bit long but that's the shortest I could go to still be comfortably take it off. Tube seems short and dice are sticking out a bit - that's because I wanted as low overall length as possible, to better fit in the gaming boxes etc.
If you want to tinker with it, for example make the cap shorter and the tube longer, here's the link: https://www.tinkercad.com/things/5npV6CFu16n
The author marked this model as their own original creation.