"the most delicious milk liqueur I've ever tasted."
"unmistakably creamy and citrusy (not unlike a Creamsicle). Like a dessert in a cup. But with booze." (the citrus version)
"not unlike a chocolate malt ball." (the chocolate version)
"Bathtub Bailey's"
"an excellent and fortifying after-dinner tipple"
"potent and delicious"
"creamy, fruity crowd pleaser along the lines of Bailey's or Kahlúa"
"a liqueur so smooth and perfectly sweet that you'll want to sip it straight."
Well, I did the deed today.
Ingredients for my go:

2c Vodka
2c Milk (not pictured)
1.5c Sugar
1ish tbsp Madagascar Bourbon Pure Vanilla Extract
1ish tsp Hershey's Cocoa
0.5 Lemon (wedged)
Here's what we are looking like at the beginning of our 10-21 day at room temperature adventure

Now the wait... and then a cheesecloth straining, followed by a coffee filter straining or two...
Links: Gizmodo, WeGottaEat, xyz recipes, TheKitchensGarden