Does anyone make alcoholic root beer?
Never tried it as I think root beer is vile.
I've always wanted something drinkable that I can put ice cream in other than brandy. I've heard of using stouts but that sounds kinda nasty.
You could always get alcohol infused ice cream.
I've never liked floats of any kind. You could go the "alcoholic" Dr. Pepper route, but then I would call into question your manhood.
If I were you, I would try a modified white russian. Back off a little on the cream perhaps.
Or an Irish coffee.
Good coffee over a few scoops of real vanilla ice cream is quite good.