An abundance of unicorns, as such would be found in the black forest of Hogwarts, (pre-Voldemort, of course)
"Where do you think i could find a Unicornucopia? I need to catch a unicorn to get his horn. Its a present for my girlfriend...no big deal..."
"dude, did you see that Unicornucopia heard hauling ass away from that girl? No way SHE'S a virgin...."