Andy and 'None None' both write to praise Paia, vendors of DIY synth kits since 1967. On the left side of this yellow box is a Paia Fatman analog synth. On the right is "a bunch of audio processors", all built into a drill case by Retrosonic, whose whole site is full of wonders. Paia also sell kits for cool things like spring reverbs and ribbon controllers. I wonder how Mr Champagne got on with his.