plastic pony
n.— «An increasing number of punters are turning to football and other sports, but the fastest growth area has been in fixed-odds virtual games, from touch-screen roulette slot machines to computer-generated horse races—known to punters as “the plastic ponies.”» —“Virtual racing claims 17% of betting on horses” by SImon Bowers Guardian (United Kingdom) Aug. 13, 2007. (source: Double-Tongued Dictionary)