Check out this awesome wedding package from Larry T Quach. The invitations, seating chart, place cards, and wedding favors are all taken from elements of the Nintendo classic Super Mario Brothers.
The cartridge invitation comes in a black sleeve. I'd totally forgotten about the sleeves until I saw this.
Open up the invitation for the information and a look at the game "works".
These were the wedding favors.
Inside is a little card. Don't take the heart, Mario! Lakitu's gifts are always a ruse.
And this is the card that guests use to mark which meal they chose - ha! I love it.
There are a ton more photos, plus explanation from the designer at the source.