You want to see beautiful horses?
And these are gorgeous. 
http://www.dose.com/lists/16289/The-21-Most-Unusual-Horses-That-Make-Even-Unicorns-Seem-Basic
= new reply since forum marked as read
Rabicano is a roaning pattern, but with different genetics than a true roan. In the "true" roan, only the horses head and lower legs are full color, with white mixed in throughout. The rabicano roan leaves the head, neck and chest areas, along with legs, full color with the white mixed in from the flanks. In extreme rabicano the roaning covers the body and they may even have a white stripe up the lower neck. Rabicano roans also have a "frosted" tail.
Because Dahli is such a dark near black bay, depending on the time of year her coloring changes from red to blue roan (#15)
On some of the other colors, most of which frankly are not so rare. All horses come with a base body coat of either black or red, with modifier genes. Chestnuts have red body coats; bays have black body coats with the "agouti" modifier gene that dilutes the body color and leaves the points, mane and tail full color.
#1. leopard appaloosa's are pretty common among the breed. some appy's other color patterns are more rare.
#2. pintos and paints are pretty common too.
#5. It's "sooty buckskin" (not "sooty on buckskin" lol) and it's my favorite variation of buckskin. Buckskin's are genetically a single "dilute" gene on bay or black (called "smoky black"
. Buckskins on bay range from very light yellow bodies (buttermilk) to the very dark sooty.
Buttermilk Buckskin
I'm surprised they didn't include a palomino in the listing. That would be a single "dilute" gene on red (chestnut). Palominos range from very light yellow to deep gold. Their manes and tails range from white to dark flaxen/light gold.
Quarter Horse palomino
#6. Cremello is a double "dilute" on red. Double dilute on black is called Perlino. Looks very similar to Cremello, but with amber, versus blue, eyes and a more pinkish coat. Cross a cremello or perlino with a bay or chestnut and you will get buckskin or palomino foal guaranteed.
What's more unusual about the Akhal-Teke breed is the metallic sheen to their coats. They come in a variety of colors, but all look very metallic. It's caused by a scaly hair structure that reflects light in a specific way.
Akhal-Teke golden (light) chestnut
#9. dappled grey is not really rare. All greys start are born either black, bay (agouti gene on black body) or red. Their colored hairs are gradually replaced with white hairs as they age, starting on their faces, usually around the eyes. The look goes through phases, from steel grey, to dappled grey, to blue or red roan looking, to all white coat.
There are 2 basic genetics to white horses, other than albinos: the grey gene that causes them to turn white over time or the "W" gene that masks the color genes, causing horses to look white from birth.
#16 Sabino is the gene that causes jagged high white stockings on 3 or 4 legs, a "bald" face and often belly spots. It is linked to Rabicano roaning, and sabinos often will show some roaning in the flank area, which can extend throughout the body (extreme rabicano) as in the picture shown here. The most extreme sabino markings, called Maximum Sabino, leave the horse all white with just a few white patches. "Medicine Hat" sabinos are all white with just color at the poll (ear area and crown of the head).
minimum sabino
Medicine Hat foal
A book I have at home ("The Eyewitness Handbook of Horses" first introduced that coloring to me with the entry on the Soraia pony 
Thanks for a great way to start the day!
