I can't think of anything beside string that would fit Doflamingo power but you can never be too sure with Oda. I'm rather surprised that Oars Jr got taken out in 1 chapter but that just mean we're closer to seeing all the big shot fight

on a sidenote: one thing that have been bothering me for the longest time is the reasoning behind the admirals title (Blue Pheasant, Red Dog, Yellow Monkey).

Then I recently came across the wikipedia page for Momotarō while randomly browsing and read through the reference section. Can't believe i never figured it out, despite actually being familiar with the folklore.