A few weeks ago over at CC, Aviatrix came up with the great idea of Mark Trail bingo, and spacemika and bats :] created spiffy cards for the game. I used their images to create a Mark Trail bingo card generator and game caller.
This week, Uncle Lumpy posted a great collection of classic Margo images, and I've used them and other Margo images to create MARGO bingo:
The MARGO bingo card generator
The MARGO bingo game caller