Flickr has a photo pool called 'what's in your bag?' This group has almost 4000 photos in it (and growing). If you would like to do something a little different, Timur Akhmetov and Yulia Yakushova are encouraging you to scan your face alongside whatever happens to be in your pockets.
I have no idea why.
But it's really interesting to see what and how and wonder why.
In the 1990s, before James Gee began to think about video games and learning he wrote about Discourse (with a big D), describing it as an identity kit. With that in mind, it is fascinating to see what people keep in their pockets and/or what they want us to think they keep in their pockets and how they choose to arrange it all.
There's something really interesting here about the notion of making the very personal and private, public. The communal nature of the activity is also quite fascinating.
Don't forget to close your eyes when you do your own entry (or wear goggles).