It has a little in common with an Orchids of Hawaii R-3 but it's not a direct copy of anything else out there that I know of.
It does come with directions to concoct a Deep Atlantic. That may be the cause of him holding in his tummy. I haven't tried it yet but I'll share it with you.
1.5 oz. Vodka
1.5 oz. Rum
1 oz. Blue Curacao
Fill a long glass with crushed ice,
stir all ingredients and fill with
1 tbsp. of Sprite.
I'll post a comment when I try one. Let me know if you beat me to it.