Here is the official colors of the Mojang horses.
Notch http://s7.postimg.org/50xupjxm3/2013_12_26_22_41_09.png (http://s7.postimg.org/50xupjxm3/2013_12_26_22_41_09.png)
Jeb http://s30.postimg.org/w2tae1hjl/2013_12_26_22_41_11.png (http://s30.postimg.org/w2tae1hjl/2013_12_26_22_41_11.png)
and Dinnerbone http://s27.postimg.org/48d7ffn5f/2013_12_26_22_41_15.png (http://s27.postimg.org/48d7ffn5f/2013_12_26_22_41_15.png)
I like DinnerBone horse, i wonder if you can have low ceiling and it'll seem like DinnerBone is walking on the ceiling.
Ok, lemme try that and I'll post another pic