I don't think the bubble wrap keeps from seeing with good X Ray equiptment. At least I certainly hope not. We have heard all kinds of stories about conviscating the booze, but we were just lucky I guess. Our last NCL cruise (about a year ago) we did several things and were ok. We did have a 1.5 liter bottle of wine in our shipped luggage. No one said a word. With us we did 2 things. !-I got hubby, for Christmas a pair of bonoculars(spelling) but they weren't real; they were a flask. Each side holds 8 oz of booze. He had all the scotch he needed around his neck. I had a 6 or 8 bottle case of water, but 2 of the bottles contained Vodka. I think it's the flaunting or the bringing on of enough booze to supply the nearest bar that creates the problem. The worst that can happen, they will keep it for you until the last night. You may be a little embarrassed, but it kinda reminded us of some of the things we did in high school 50 years ago. Shame on us old people!
NMNita