Run a tombola at a local event. Here's an idea from one of our members:
Try a "Chocoholics Tombola". To get the best value for money, buy multi-packs of chocolate bars over a period of months, when they were on offer, and split these into individual bars. Also provide larger prizes (boxes of chocolates for example) to make the stall attractive. Have 100 prizes and sell the tickets at 25p each or 5 for £1, with a one in five chance of winning.