Bukkit

I am loving your plugin, and plan on implementing it on my server once Bukkit releases a recommended build. I've started a discussion on my server forum to get opinions on the Postman, and a player suggested a Spider Jockey. Would it be possible to implement into the plugin? On that note, what about other animals mounted on other animals, like how you can /spawnmob cow,chicken? I also personally favor the idea of COLORED MAIL SHEEP :D It would be amazing to have a purple Sheep deliver the mail to players on Dark Roses!

If this is at all possible, for the config, maybe you could accept the following syntaxes:

colored sheep:
Sheep:Red
Sheep:Blue
Sheep:Orange
etc.

jockey:
Sheep,Villager
Cow,Villager
Pig,Chicken
etc.

"Nice to have" - but it's low priority. Thanks for the suggestion.

Maybe a villager jockey :)