Want a good excuse to save money? Then invest in this Arcade Machine Money Box, newly-arrived at Firebox.
Yes, it's a mini replica of an old arcade cabinet. Just slip in a coin and in return, you'll get two minutes of Space Invaders-style gaming from Earth Defenders for two minutes. Want more? Stikc in another coin. It'll soon mount up, just as long as you don't spend all that money on replacement batteries.
2x AAA batteries keeps things running, £14.99 secures you one.