Hydrodynamic building set

Speaking of fluidic computing, this looks like some fluidic logic waiting to happen. $89.99 at ThinkGeek.

Fluidic computing at Bowles Fluidics

I had the pleasure of participating in the Coding and Computation in Microfluidics workshop at the MIT Media Lab last week. A highlight for me was the brief presentation about the history of fluidic computing by Ron Stouffer and Sri Sridhara of Bowles Fluidics. Check out the wonderful diagram of various fluidic logic gates and their valve and electronic equivalents (left), and look at the original PowerPoint file from their talk for how these principles are still used in things like massaging chairs and windshield washer nozzles.