I think all of these have been in my plog at some point, but here's a chance to show them together, which is helpful since they complement each other.
First of all, the main part of a Nurgle team - Beast/Rotspawn, Pestigors, and Warriors (I made six just so I could model Claw options):
Obviously, they're not a complete team without the Rotters, so here are my Rotters:
The ones at the back (Chaos Marauders with Zombie heads) were originally made to be my Rotters, but they can also double as Marauders for a Chaos Pact (or Renegade) team, hence I made the Goblin, Elf, and Skaven in the front - though these can also fill in as extra Rotters if needed.
And, lastly, here's a regular Chaos team:
The Warriors were done long ago, when I was working on my WFB Warriors of Chaos army - hence the square bases (I'd sometimes use these at the back of a unit, where being unarmed wasn't obvious).
The Beastmen were done more recently, when we were playing a 7s league. While 4 Warriors and 7 Beastmen is *just* enough for a full team, my intention was to do another batch at some point. It's not pressing though, as I can supplement them with Pestigors from the Nurgle lot above if needed.
So, that's 32 models but it gives me a complete Nurgle team, a Chaos team (no Minotaur), and most of the options for Chaos Pact (I just need the big guys and an Orc). Had I been more interested in efficiency, I could have cut six Warriors and done it all in 26 models.