We did this but used our new KYSS bag's locking mechanism to loop the locking chain through all of our bag handles and a chair arm for piece of mind. Sounds paranoid but we all got in line and road the Aquaduck together with no worries! We rode a few times before Sail Away and were glad we did!
My thought (mistakenly) is that if you can afford a Disney Cruise you don't need to take my stuff!! (I've NEVER had a problem, but depending upon the ship / time of year you are talking between 2,000 and 4,000 strangers onboard).
GET UP TO A $1000 SHIPBOARD CREDIT AND AN EXCLUSIVE GIFT!
If you make your Disney Cruise Line reservation with Dreams Unlimited Travel you’ll receive these incredible shipboard credits to spend on your cruise!