The latest WW Tweet message tells us this:
Just awarded three lucky fans with a SPARKLING PEGASUS pet code. It can ONLY be won as a prize. Watch for more chances to win. Congrats!
NEW UPDATE (Mon, 11:45pm, ET): Ganz has tweeted this new information: The Sparkling Pegasus will *not* be sold in the eStore, but we'll be giving them away and using them as prizes all year long! Stay tuned!
UPDATE (Tue, 2pm, ET): Thank you to Webkinz Insider member SnowCrystal for sharing the following direct message she received from Webkinz with us: "They were sent through Twitter direct messages. We'll give future ones out through Webkinz Newz contests, and maybe even KinzPost."