Bored with your common-or-garden piggy bank? Us, too! After all, what's the point in it being pig-shaped if the pig just stands there and offers no discernible contribution to the whole money-saving process?

So you can imagine how delighted we were to stumble across this feline-based alternative from Japan on YouTube.com. As you can see, the cat takes an active role in pulling the coins through the slot at the top of the box - providing endless entertainment for savvy savers and pet-lovers alike.

We're now wondering if this could work on a larger scale. Maybe banks could encourage cat-lovers to open savings accounts by employing willing moggies to work in cash deposit machines. (Fat-cat bankers, anyone? No?)

Got time to look at some more sneaky cats? Excellent! Be our guest...

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• Wrapper Attack

  Poor wrapper never even saw it coming.

• Good Hiding Spot

  Quietly waiting in the box for the perfect time to strike.

• Suitcase Attack

  Good luck packing.

• Stealthy

  Staying perfectly still until the attack.

• Watch Where You Walk

  Your feet are completely vulnerable to a kitty sneak attack.

• Around The Corner

  Be careful when you come around that corner in the house.

• Don't Look Away

  Do take your eyes off that cat for even a second.

• Computer Attack

  Hopefully there was a screen protector on that thing.

• Jump Attack

  Always vigilant, even in there.

• Kitten Attack

  Wait for it... Wait for it...

• Raccoon Gets Stuffed

  Because toy raccoons are irresistible.

• Toddler Attack

  Poor kid didn't even see it coming...