Cocktail Shot Layering Tool - The White One

Like a lot of people, I like shots - especially the layered ones. There's nothing quite like a squashed frog :)
However, using the old 'pour the second drink off a spoon' trick always seemed to mix them down one side etc. A couple of years ago I came up with an idea for a tool that would solve that. After buying the bits (and losing a couple of them) the idea fell by the wayside and didn't get made.

I revisited this recently, and after learning a little bit more about 3D modelling, came u