Extra Shiny Hoof Polish quest item

Extra Shiny Hoof Polish is an item in Villagers & Heroes.

No one knows what this stuff is for or why there is a vendor who sells is and ONLY it.

Acquisition
 * Poppie (D6) in Maiden, she sells you Triple Crash Calf for 5 copper.
 * When you return it to Triple Crash Calf (B2) in Maiden to finish the quest: Extra Shiny Hoof Polish.