Number 103. The surreptitious voltage follower, sticking closer to that voltage than brown mucky to a blanket. Never straying more than a few milli-volts at a time. Tighter than two coats of paint.
I think this one is on an undercover operation… perhaps code-named Op-Amp.
*cue loud chorus of groans*
p.s. this design will be on the CafePress store in a day or so….