I have put a few cels in the Rubberslug shop. 
Here is a breakdown of what I have: 

2 Gundam Wing (both Duo) 
http://www.rubberslug.com/shop/shop_details.aspx?
i=1313&n=52 
http://www.rubberslug.com/shop/shop_details.aspx?
i=1312&n=52 

1 Cowboy Bebop (Jett, Ed, and Spike group)
http://www.rubberslug.com/shop/shop_details.aspx?
i=1311&n=22 

1 Ai no Kusabi (Riki)
http://www.rubberslug.com/shop/shop_details.aspx?
i=618&n=1 

1 Background 
http://www.rubberslug.com/shop/shop_details.aspx?
i=615&n=1 

All of these cels and maybe a few others will 
make their way to ebay eventually if they don't 
sell in the shop. 

As always, e-mail me with any questions. 

Thanks!!