Here's a game someone taught me today. It's like word association, only with pictures. One person posts a picture, then the next person posts a picture that has something of the last picture in it.
No words, just pictures.
For example, someone might post a photo of a hen, the next an egg, the next Humpty dumpty, the next a wall, the next the kings' guards, the next a prince or future king... and so on with an emphasis on silly fun.