World Map Aquarium

Forget about glass bowls with a sprinkle of goldfish inside swimming round and round and round. Or huge rectangular tanks brimming with water, fish, and a thousand and one ornaments inside. Don't build the world for your fish. Let your fish live in the world.

This coffee table aquarium is made from glass cut and shaped like the world. The unique design and functionality achieved a TIFF Award for its designer Takuro Yamamoto. Definitely a conversation starter at parties or when you have socially-awkward friends over, I'm pretty sure this would keep the kids entertained too. (I hope the glass is shockproof).

I can just picture a dozen colorful small fish gliding around the world. If you do want to up the functional aspect, I would suggest maybe pasting an atlas underneath this, so your kid can learn math and geography at the same time.

More info here