Congratulations!
You found an egg! CRACK! What's inside?!?!
Its a Petpet MYO/EVO Ticket! They cannot be traded or gifted, and never expire. This can be used to create an open unevolved Petpet for your floss, or to evolve a petpet your already own! You can redeem your ticket at the Petpet Shop!!
This is your third egg! Great job hunting!