I suppose that one could dry beer in the oven as one does jerky. The resulting powder-paste-gurry could be rehydrated at need, and carbonated by adding an alka-seltzer tablet, and realcoholed by adding an appropriate amount of vodka or everclear. Or we could ask the candy makers to produce beer-flavored fizzies (http://www.candydirect.com/novelty/Fizzies-Root-Beer.html).
This fluid might be offensive to connoisseurs, but the worst beer I ever had was wonderful. Probably stems from growing up drinking Ballantine in squatty little brown bottles. The old man opened one once, took a drink,, and looked puzzled. Took another drink and then held the bottle up to the light to see if there was an explanation for the off-taste. He found a three inch cigar but floating in the pale ale. Point is, it took two slurps to figure out that something was amiss.