A hyperboloid diagrid  lattice dice tower, looking like a mix of one of Vladimir Shukhov’s towers and a power plant’s cooling tower.
Diceware and KeePassXC
Apart from reducing cheating at dice games, dice towers are a great way to generate passwords that are easy to remember and strong. Look up the principles at diceware and get nicely formatted English or German lists from my github LaTeX diceware repo, for the standard 5 x 6-sided dice or 3 × 20-sided dice.
On the other hand KeePassXC and presumably other password managers can use wordlists and generate diceware-like passwords for you.