If it goes twelve rounds, each judge should toss a gold coin with the head of each fighter engraved on a different side. the fighter with the higher number of coin tosses in his favour wins. The judges can then sell the gold coins on eBay to make a few extra quid. Although some fighters have massive heads (take a bow Tim Bradley) and there is a possibility the coins would be weight biased...
Boxing was banned in some states in America after the death of a fighter, after a few years the Walker Law was brought in in New York and was copied elsewhere so that boxing was permitted but only as an "exhibition". One of the difinitions the law used of an "exhibition" was that decisions couldn't be rendered if the fight went to points.