I don't have any but have learned enough about them that I think I can explain.
A scrap is a card where the printer made an error and the sheet hit the garbage/scrap pile before being factory cut. Scraps are hand cut, and therefore receive an Authentic grade when slabbed. They were cut out and taken home by the printers. They can have big, fat wavy borders (easier to spot as being scrap) or have borders that are too narrow, cut fairly straight, or no borders at all - these are tougher to spot.
Scraps usually have significant missing colors or significant overprints of one or more other printing layers on them. There are some, like the Lash's Bitters cards, that even have overprints from completely different print jobs on them.
There are a lot of T206 scraps shown in this thread:
http://www.cardtarget.com/cgi-bin/gm...submit=Display
I especially recommend post 7 which shows Leon's Mullaney scrap that was kindly broken down by Chris Browne in the image I have posted (Leon, I know you never get tired of seeing this card on the board so I thought I would post it for you!).
And a cool bit about the Lash's Bitters cards here:
http://www.peachridgeglass.com/2014/...eman-in-a-hat/
Things that do not count as scrap: factory cut cards that are missing a color pass or have a miscut front or back.
I am sure others will have more to add to this.