Mindflight Entertainment have posted a Flash toon of Sam and Max, but this one is far from a fan creation. It is the work of the legendary creator of the 2 most loved freelance police in the world - Steve Purcell.
Steve directed the toon along with Gary Winnick and Frank Cinocco. Both Gary and Steve are ex LEC employees. Steve not only invented Sam and Max, but drew the cover art to the first 2 Monkey Island games (among countless other classic LEC game box covers), as well as the characters in the game itself. As for Gary Winnick, he worked on Maniac mansion, Loom, and Zak McKracken.
Mindflight Entertainment describe themselves as "a creative development environment for character driven animated content for the web" and I will certainly look forward to more content after this toon.
The Sam and Max toon features the loveable duo performing an autopsy Roswell style! Now go watch it.