To do this little secret, you will need:
A pet owl
Access to the Cruise Ship Party
Okay now:
1- Go to the Cruise Ship Party
2- Find the Sun (it is near the chairs)
3- Put on your pet Owl
4- Click the Sun
5- Done! Your Owl will be sitting on the sun!
This might work with bats and butterflies too, but I have not tried it yet.
Hope you guys like this!
-Bunny