Mass Effect... Playing Cards?

[Tawmis]

It's true.

And not very expensive. A shame I don't play cards.

[BBP]

Doesn't surprise me, actually. Playing cards, and kwartetten (a slightly different version of Go Fish that is very popular out here for unknown reason) have always been used for promoting items, or generating an easy extra income on the backs of the easily influenced: whether simply putting your beer brand on the card backs or whether designing each and every individual card.
...I'm just glad my playing card collecting has come to an end.