I want to know some cool chapters out in the 40k universe. Everyone knows the original legions that started, and some of their more prominent founding chapters, but what about some of those really cool chapters that aren't as common that have some really unique fluff.
The best example would be the Black Dragons. They grow spikes on their elbows and forehead. They sheath them in metal and use them in battle. How freakin cool is that.
I ask this because I am doing a short story series about a group of banished novamarines. The first one already done and in the original works section (advertising whore I know) But I would like to hear about some really cool chapters that they could come across.
If you know of a really cool chapter, or have even made up a chapter that has something that I like, please post it, I would be real grateful.