Answer:
Alright:
The Fish is on the 'Far away friends' page. The one about long-distance friendships.
The Starfish is on page 4 at the bottom.
The Crab is blended in really well on the 'Win a Trip to California' page to the left.
The Sailboat is on the 'Embarrassing Moments' page in the background of the spray tan mishap story.
The Pineapple is on the nail polish page to the very top right. Where they usually have a flower, it's now the pineapple.
The Sun is on the 'Great Debate' page to the right.
The Umbrella is on the 'Growing Up' page (24) to the very left bottom corner.
The Sea Horse is on the 'Body Language' page in the middle.
And finally, the Castle is on the 'Fun Summer Looks For you!' page right about the 'For You'. It's really small so look closely!
Hope I helped,
SF