The word "souvenir" means "to remember" in French, so the best souvenirs are memories. But the best memories are quirky ones.

I once knew a man who had to pour champagne on the cruise ship captain's head on every single cruise he went on. He did this at the kick-off party for every cruise, but also did it on the night when the crew built the champagne tower -- just to see if he could get away with it. This led to some incriminating photos -- and captains who smelled like bubbly!

If you're cruising as part of a big group of family and friends, it's a lot of fun to divide into teams for a scavenger hunt. Items for the hunt can be dares, found objects, and fact-finding missions.

For example, have the groups try to find the ship's largest suite, or ask each team to shake the captain's hand. It's a great way to pass those days at sea -- and you can learn a lot about the ship you're enjoying!

Pro tip: If you require there to be photographic evidence of each completed scavenger hunt item, then everyone goes home with great scrapbook photos.