Oh yeah, toys.
Stumbled across a pocket digital-storage oscilloscope via twitter today. It even has open source firmware, so you can give it different interfaces, which seems especially useful for the low-speed-data robotics/sensor work I'm about to embark on.
Of course, I haven't started to do any of that, so it's more of a "well-matched cool-looking gadget" then a "tool that I already know I need"... but that's really not an issue here in general, and since it is shipping from Shenzen, it's probably not going to arrive before I actually get my new workbench and actually start breaking things.