DisneyBand+

[Daphne Hope]

When buy the DisneyBand+ online on Disney cruise website  can keep as an souvenir to take home.

[ArthurUSCG]

DisneyBand+/MagicBand+ are yours to keep. If you are buying it just for the cruise, I would skip it. The KeyToTheWorld card is still need to leave or get on the ship and if your on the Magic/Wounder/Dream/Fantasy, the readers are setup/designed for the Key card and you'll be constantly removing the MB+/DB+ to scan them. Instead, I would suggest getting a card holder for the back of your phone, since you will need your phone for the Navigator/activities schedule.

The MB+/DB+ are a solution in search of a problem.