My family and I are rabid cruisers, over the past few years I have taken at least 2 twelve packs of the hangover shot with me 3 times on carnival and 4 times on Royal Caribbean. Each time I am approached by people wanting to know what bar I got it from. I hated to tell them I brought it aboard. Almost every time they offer to buy it from me. Most of the time if I have enough left I would just give them a sample. Even the cruise coordinator wanted to have a sample.
I've mentioned this to HJOE on Twitter before, and I know from personal experience that this would sell like wild fire in the cruise industry. There are an average of 4000 cruisers on a ship with about 2/3 drink heavily every day.
My entire experience has been improved dramatically during morning hours. Trying to keep up with kids and or getting ready for a full day off ship with activities is rough with a dam hangover. The day I started using HJOE on vacation made my vacation that much more enjoyable. They could easily sell 10000 shots per 7 day cruise. And that's a fact.
Just some food for thought