Better than MacGyver!

This is what happened today, when we expected the kids to entertain themselves. It's rather impressive.

You take this:

Then, you ransack the house for supplies. You put them together like so:

And then you hide it under a rug and wait for something to provide pressure (Mom on the rug, walking in), and you get:

At some point today I also saw a balloon with a birthday candle taped to the side of it. I think it's time to up the insurance...