As for the ground beef players, I had been playing with the idea of having a group of players who sort of acted like "eevees" from Pokemon, if you will. They each started as vanillas and had to submit to me the name of one player (who wasn't them) the first day of the game. What roles they became depended on what happened to them during the game.
The ground beef role was essentially a modified Wild Child role.
If a ground beef player's mentor died, that player would autoconvert to being a vanilla wolf the same night. The remaining mentors for the other two ground beef players would receive special items that were 1 use only, along with a message congratulating them for being a good influence on an unnamed player.
If a ground beef player was vouched for on thread (this criteria includes hard vouching but also included being placed on a village lean or stronger on a reads list), they would upgrade to being Hamburger, a Day PMer.
The remaining ground beef player after the other two changed would become Leftovers, an item maker. They could also upgrade to Leftovers if they had a standing vote in the final lynch tally, but were not the player actually lynched that night.
If not all of the ground beef players had differentiated by D5, the remaining roles would have been RNG'd.
Our ground beef players this game were Sporty, PotE, & MixyMama. By sheer coincidence, Sporty & PotE selected each other as their mentor, which is why they both got items the day that MixyMama converted. By sheer coincidence all three GBs upgraded/converted the same night.
Sporty was vouched for by Cray in a reads list (as village lean), WZ died and caused MM to convert, and PotE was left of the three and so became Leftovers.