While David concentrates on improving his Elton John impression, I am offering a prize (a copy of my book or a Masai Browband [14 1/2 inch]) to the first person* who correctly identifies the true purpose behind this gadget.
Good thinking but incorrect:
A gadget for picking up horses' feet.
Close, but no coconut
For desensitisation of a horse that is worried about being touched.
It's a gadget for desensitising the nose of semi-feral foals before introducing a noseband. And the winner is: Annette with Bowdrill......
* Unfortunately Jenny Crouch and members of her immediate family, may not take part. Sorry.