Plush rainicorn from Adventure Time.
And a few more links:
1. Phineas and Ferb/Clone Wars mashup birthday invite.
2. The alternate world DC Comics covers from the season finale of Fringe. That show would be a heck of a lot more interesting if it was told from the point of view of the "evil" Walter and Olivia, rather than just being an X-Files knockoff. Via.
3. Encrypted Google search page.
*Previously: Homemade Perry the Platypus costume (from Phineas and Ferb).
*Buy Phineas and Ferb toys at eBay.