4 night Wonder: (we sailed on 3/16)
$ 20 gets you a sticker, $ 5 additional for the mug.
You'll have to show your sticker when you fill up your mug (if you get the mug).
On the ship, soda is free at meals. Also, there is a free 24 hr drink station (coffee, tea, lemonade, iced tea, hot chocolate) on deck 9 aft.
Have a great time !