Maybe no one has an answer to this one but I thought I would ask anyway. We went on the eastern cruise in 2002 and bought the Soda mugs for each of our kids, (I know, I know, big mistake) and of course there is no way they got our money's worth. I was wondering if you can take the same mugs on the next cruise and use them again. We are going on the March 27th western cruise this time. It's not a hugely pressing question but I would appreciate any input. Also, this forum has been very informative. Thanks!