I'm definitely flexible on the ingredients as long as the desired effects are achieved.

Home Alone also came to mind. Lol and that commercial was a good one, I'd have to say I like the grin and bare-it sting.

One point that I forgot to add: Putting a lotion on my skin after the aftershave, never liked the feeling.
If there was an aftershave that moistened without any oily smothering feeling, as well as achieving the effects of a good aftershave.. I think that would be a winner for me.
Wham bam all in one! ... I go in with a blade, bowl, brush.. have my shave cream and aftershave... just add water and we're in business.

Oh and on special nights I might bring out that fancy cologne my wife buys me without confusing the scent with the aftershave.
If you make one that has a special scent that you designed that's cool, I'd probably try it out, probably like it... but a neutral scent I would definitely buy because it allows me more options. Just a thought.