OK, I know this is an ancient post, but just wanted to reply in case anyone else was wondering. The ship pins come with the past guest party invitations. They only have past guest parties on cruises of 5 nights or longer, and Sensation only does 3 and 4 day cruises. THAT's why no Sensation ship pin!
Nancy G.
Fantasy to Bahamas - 10/04
Fascination to Key West, Playa Del Carmen (Hurricane Wilma took out Cozumel!! ) - 11/05
Inspiration to Cayman and Calica, MX - 11/06
Victory to Puerto Rico and the Virgin Islands - 11/07
Sensation to Bahamas (with my dd for her b-day!) - 1/08
Inspiration to Cozumel and Grand Cayman - 12/08