I disagree with those who claim good vodka is wasted in a cocktail. The better the ingredients in the cocktail, the better the drink. You can tell the difference between a Cosmo made with cheap vodka and good vodka. I like quality even when I’m drinking mixed drinks. But for my money it’s hard to beat Teton Glacier Vodka. It’s a real potato vodka for a decent price. Tastes great neat or in a cocktail.
My husband’s idea of a “science experiment”. 
It was a fun thing to get together and do with friends, and no we don’t reuse it for water. Next up is to filter the cheap nasty bourbon and see if it turns clear!
Blood oranges and a hypodermic.