Hi. I remember seeing an ad about a year ago for an inexpensive fiber
optic type gadget that allowed you to take pictures of inaccessible
places.  For example, they showed a picture of one being lowered
through a spark plug hole to take digital pictures of the inside of an
engine cylinder.  I don't remember where I saw this and, of course,
can't find anything about it now.

Has anyone seen something like this?

I was thinking an alternative would be to lower a super bright LED into
the cylinder for light.  Then use a small digital pen camera with the
tiny lens and try taking pictures through the spark plug hole (moving
the light wires off to the side).  If nobody knows anything about the
above mentioned camera, I'll give this a try and report back how it
works.

My objective here is to see if there's any piston head damage on a
snowblower.  The engine was run very lean and hot so I want to check
for piston damage.  The guy ran it so hot that the muffler was glowing
red!  Since this is someone else's snowblower, I would rather not take
the covers and head off.

Thanks!