Drivers in the UK cities of Leeds and Manchester have had the chance to use a novel alternative payment method for using car park facilities. Users of the city centre parks were able to pay with horse chestnuts instead of money. Each horse chestnut was given the value of 20p for the short term payment system, while drivers were allowed to use up to 50 of these to pay their bills. The regulations stated that the horse chestnuts had to be intact with no holes drilled in them or they will be rejected. The car park owner has given a portion of its revenue during the period of the scheme to a local environmental charity, although this was in the form of money rather than horse chestnuts.