I can't imagine pin trading on a cruise, that would mean NO daily trips to the pin store in DTD to stock up on starter sets to trade away
But on a serious note, buy starter sets of pins you won't want to keep and it makes trading them alot easier to part with them.
I cruise alot but not on
DCL, do the gift shops on board stock trading pins? If not, then you will want to buy some sets before you go on the cruise. I find that we never have enough at the parks.........thus the daily trips to the Pin Store! My last trip I bought a bunch of starter sets on Ebay to use, just don't buy "lots" of pins for a small dollar amount, they will probably be scrappers! All the pins I bought were in the original packaging with the price tags still on them, I limit myself to $2-$3 per pin when I make a bid. If the bids go higher than that, I give up, and wait for a week or so and the same type of sets will be back on Ebay so I try again.