I'm not sure if you describe Kim's touch game (the Wikipedia entry doesn't mention this only in German). I have played touch Kim with my sons and they can easily recognize most items when 5 years old so I wonder what the limitations of your box were - or what unusual items you chose. Many items can be recognzed by feeling them with the feet only. Remembering many of them is more difficult though.
I'm not familiar with Kim's touch game, but I did run across a different game that someone came up with to practice applying Bayes theorem, which involved touching people in the shoulder with one of two objects (in the example, it was a coat-hanger, if memory serves), and then testing their ability to update their predictions based on more information about the object they were touched with. I wish I could find that page again, but I haven't been able to find it again. It might have even been linked off of a LessWrong meetup group.
I'm less concerned with ...
This is the public group instrumental rationality diary for May 1-15.
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