Today I learnt: what a mono-monostatic object is

It's a Gomboc and it'll cost you €900.

"Why!?" you exclaim.

Because it's the world's first self-righting object.

Yep, you can flip this bad-boy anyway you want and it'll always end up standing in the same way.

"Isn't that a Weeble!?" I hear you shout.

No it isn't! A Weeble is weighted at the bottom whereas a Gomboc has even density throughout. 

I want to see a building made of one. Dubai, that is my gift to you.

Product page here.