The Yellow Unicorn Puffle is a Puffle Creature. It was available from the Puffle Wild app for iOS devices. In the application it could be adopted after popping 50 of each yellow and white O'Berries on the bonus level after cleaning level 34 of Wild Woods. It can also be adopted in The Wilds.
Glitterpants is a Yellow Unicorn Puffle who first made an appearance singing in the Club Penguin song Awesome to be Rare. Glitterpants appears to be very outgoing and bubbly, but also rather self-centred and loud. As he stated in "Awesome to be Rare", Glitterpants can (allegedly) freeze time.
According to the music video Awesome to be Rare, Yellow Unicorn Puffles have a variety of magical abilities, including their tears being able to heal wounds and freezing time, among others. Glitterpants the puffle is also seen to be able to talk, although it is unknown if all Yellow Unicorns have this trait.