It's Frankenstein's Unicorn of the Halloweenicorns
Twas the night before Halloween and all through the night
The unicorns were eating every kid in their sight.
The pumpkins were placed on the front porch with fear;
In hopes that the unicorns won't find them in here
The children were hiding all shaken and scared,
While flesh-eating unicorns filled their nightmares.
Then all of a sudden the screams of a kid:
A bloodthirsty unicorn has found where they've hid.
Through the screams and the crying a voice will declare:
The Halloweenicorns are coming;