The unicorn Lancelot at Barnum and Baily Circus was real. They bred him from an angora goat and trimmed his body so he’d have a mane and longer tail.
When he was still very young and his horn buds were not yet attached to the skull they did a basic skin graft on his forehead, putting the two horn buds together so they’d grow as one.
I’m stoked I just learned all this tonight and I’m ready to call a vet and find myself an angora goat! lol