A timeless classic we probably all had as kids is still in production – the Cadbury's Dairy Milk Miniatures Dispenser Machine.
Yes, it's the money box that gives something back – chocolate. Put in a 10p piece and you'll get a mini block of Dairy Milk in return – 80 come as standard with the machine, but you can buy new ones as and when you run out. Perhaps out of all those coins you've saved along the way.
Standing 25cm high and sure to appeal to young and old, it sells for £13.