[UPDATE:] This list is a tad out-of-date. Check this page on my Tumblr for more current information:
Dragon Tail Commission Info
Here's a pile of links to pretty much all the tails I've done so far so you can browse (listed chronologically, so the interesting ones tend to be more towards the bottom):
http://fav.me/d2677j1 aluminum with yellow brass strip down the spine
http://fav.me/d3a0b0o same
http://fav.me/d394r6s same
http://fav.me/d3irrt7 blue and standard aluminum alternating
http://dracoloricatus.de