Here are the items (thanks Mike 92):
St. Patrick’s Day Party Item:
Name: Gigantic St. Patrick’s hat
Type: Head
Cost: 0
Item Id: 663
Easter Party Item:
Name: Green Bunny Ears
Type: Head
Cost: 0
Item Id: 664
April Fools Day Party Item:
Name: Swirly Glasses
Type: Face
Cost: 0
Item Id: 138
And did I forget to mention that there are hidden coins in the Paint By Letters game? Here is a pic:

(Thanks: Mike 92)
Here are the book’s swf links:
My Puffle: http://media.clubpenguin.com/games/book1/game1.swf
Burnt Out Bulbs: http://media.clubpenguin.com/games/book2/game1.swf
That’s all for now!
~ Santa0704
Posted by A. A. "A." "L." L. M. II 
Posted by A. A. "A." "L." L. M. II 