A really nice idea. I never thought of the same nor there exist a few sites. I will follow this thread to know more as I am gonna surely try once.
it's easy to buy alcohol online with bitcoin, send a private message what alcohol do you need and I will ask if how much it cost to ship in your country then pay some bitcoin in my bitcoin address. The reason why this website doesn't exist is not worth it for the price. Who wants to buy an item online that can be find in any market in your area right? and Who wants to cost too much for the alcohol? Shipping cost is too high and right now the sipping is not already in the normal speed.