Dancing Fancy. Another example would be Summer Breeze, switched to Breezy Summer... I don't know if it'll work, but I'm bored so thought I'd try it LOL
-Switch one horse's first and second name
-Change one horse's first, but keep the second
-Change one horse's second, but keep the first
-Change one horse's entirely, keeping the same initials.
(You can apply any rule to any name as long as each rule is only used once)
Here are the first names: