The Holofoil pack Includes 4 colors of holofoil to make your ponies holographic. Comes in Sapphire, Peridot, Diamond, and Ruby. This pack is available year-round. Holofoil fits all sizes, but only adults will display it. This pack costs 50 IVs.
You can even add more than one holofoil to your horse, resulting in some fun combinations!