With more and more hardware wallets having the ability to select the last word of the mnemonic, generating these from dice rolls is easier than ever. Here are the sheets for selecting these using three d8 and one d4 dice, arranged in a way to make finding the word as quick as possible. Maybe someone finds it useful.
https://github.com/sad-error/bip39-DnD-dice
You should include in the readme that the three d8 have to be distinguishable (different colors would be a good way) and that you should decide ahead of time which order to read them in.
Mixing D&D and bitcoin, my two favorite things.
It’s 3d8 not 3xd8.