Bigger Boxes

Here's a little thing that popped up on eBay recently.
Does it look a little dangerous..?
Maybe...
Does it make a noise..?
Sure does...
Does it emit smoke..?
Only if you poke it with a wet stick...

When It Gets Colder - It's Time To Solder

I'm building this for an old friend. He'll have to guess what it is...

Also on the bench is a pair of Barton Decaying Analog Noise modules and a couple of Sloth Chaos boards from Nonlinear Circuits