Judoon scanner torch! BUT - and this is the COOL part - he's opened it up and tinkered with its innards so that it now uses 1/20th of the power and produces 4 times the light!
He replaced the two AA batteries with one, replaced the original lame bulb with two LEDs from a broken torch (resulting in significant power savings), and also made the switch much more robust. Heh heh heh. Customised Doctor Who torch. Weee. :)
BTW.... if any of my dearest friends happen to already have bought me a Judoon Scanner Torch (based on the accurate assumption that I love pretty much all Doctor Who merchandise no matter how crappy) then I'll still be happy to receive it (this is a reassurance not a hint). Jeremy's talking about the benefits of having another one around the house just in case the first one breaks.