This group is - as you probably guessed by the name - for Treasure Planet or Treasure Planet: Battle at Procyon crossovers. I love the Treasure Planet universe and I figured throwing in some MLP:FiM wouldn't hurt, so that is why this group came into being. Be creative: I don't particularly mind if you bring Jim into the My Little Pony universe or you mix the latter with PIRATE SHIPS IN SPAAACE!
There's only one prerequisite: make sure your fic is readable and has decent grammar and syntax. If you have problems with those, I suggest you consult The Proofreader Group. Otherwise, I look forward to seeing your fictions ASAP!