Krisztinia

I'm trying to make a tail that is long and skinny with a bigger part at the end. I'm building Timcanpy from the anime D. Gray-Man(Please look it up, here's my reference picture: http://media.photobucket.com/image/timcanpy/stephany_ritalin/timcampy-dgm4.png?o=37), and can't get the big part at the end of his tail to stay on the skinny part when I move him. Is there some way I can get it to stay? The tail doesn't have to be flexi, but it can't stick straight out.