Ok, just wanted to react to the new tutorial, 
Requiem, very nice!  And the Spidey cel above is 
outstanding.

So... I'm poised to do my first fan cel.  I have 
what I consider a darn nice freehand drawing of 
Inu Yasha (done before I looked at the original 
tutorial and figured out how to capture a screen 
image, duh...)

I run to hobby lobby and find a pigment pen to go 
with my very nice acetate (thanks Drac) and go 
home.  Follow directions, shake pen, release 
pressure, start drawing and... it's WHITE.

-- as an aside, an artist acquaintance asked me 
what was wrong with white when I told her this 
story :).  When I explained that the whole point 
of getting the archival quality pigment was to 
avoid BLACK-line fading she said "So why not do 
it in white?  Who says you can't be original?"

I was tempted to ditch the acetate, but you know, 
up against a piece of black paper the thing looks 
fantastic.  So my question is: (deep breath, yes 
I am capable of forming concise English sentences 
on occasion, but this isn't one)

Has anyone out there ever experimented with doing 
a cel with a WHITE outline??  If you have, would 
you share the results?  I'm gonna go ahead and 
give it a shot anyway to see what happens, but 
I'm curious :)

(or stupid... stranger things have happened)