From the site io9 these are various deleted scenes from the Star Wars movies: at least one from EACH episode (10 in all).
http://io9.com/5414704/star-wars
UPDATE: Some of the videos have been removed due to Imperial entanglements copyright issue(s). Maybe there is still an unseen gem to some, so I'll leave this up.
I also added the picture at the top - unrelated to the topic, but too darn funny to pass up.
