Maybe I am late to the game on this one, but I have just discovered that the internet is basically a DIYers dream come true. You can order anything online these days and have it shipped to your home in no time. I am obsessed and it is seriously bad news for my credit card.
My latest find are these DIY kiosk kits from Allwood. They were made for vendors at outdoor markets, but would also work perfectly for a backyard bar.