Gromit mug.

Who's a good boy?

Nope.

Alien archeologists will discover one of these in pretty much every building on the planet, often in a dedicated room, sometimes in communal rows with no idea what it's for.

who says we don't already?

Capitalism is what we worship, so they wouldn't be too far off...

Everyone: Interesting. Nice Mug.

Me (B.A. in near eastern classical archaeology): Okay...is it a Greek mug? Or is it an Etruscan mug? If it's greek, why is it in the Etruscan museum of Villa Giulia? If it's an Etruscan mug, why is the poster saying it's Greek. No..no...no....nothing about this makes any sense at all.

Owning mugs with cool imagery is quite a sensible form of worship imho