Wings, Horns, and Hooves: The Ultimate Unicorn Mod passed 4000 downloads just the other day. It's been out for 1.5 months now, so I consider that a great start.
In that time, we've included some great custom unicorns, fixed a lot of bugs, and added some new features. You can see the custom unicorns in the Hall of Fame, and I recommend that you make one yourself. It's a really cool way to get your own unique piece of a Minecraft mod that you can show off to your friends.
Wand of Dropsies
Among those new features is a new wand, the Wand of Dropsies. This odd wand can be used to knock an item right out of your opponent's hand. Is your mortal enemy trying to blast you out of the sky with his Wand of Call Lightning? Target him with the Wand of Dropsies and watch him fumble his wand onto the ground! Then grab it for yourself!
(For my non-English speaking friends using a translator on this page, "Wand of Dropsies" = "Wand of Dropping").
New Configuration Screen
We added a new configuration screen, so you can modify how often unicorns, pegasi, destriers, and nightmares spawn in your world. There's also a handy config option to change what these mobs are named, in case you run a lot of mods and have name conflicts. There's an automatic backup name for each mob type that is used if there is a conflict already, and you can see that in the config screen.