I framed several of my cels myself, i had no 
experience with framing so i hope i did nothing
wrong.

I have documented the steps how i frame in this
little step by step guide, the language is german
but the pics itself will help i think:
http://users.animanga.com/kiyone/rahmen/index.shtml

Attached is my latest cel that i framed, i wanted to
make it look like it is in the virtual frames gallery:
http://www.mindeclipse.com/virtualframes/page06.htm
(sorry for the bad photo, it looks mich better in
real)
I've also documented how i did this framing but it's
not online yet.