Back in 2005 I started the yahoo group cartoon muscle:
https://groups DOT yahoo.com/neo/groups/cartoonmuscle/infoI added videos, some others added a few pics but there wasn't much activity. I moderated it until it just became overrun with spam.
In 2007 after seeing the strong arms of the ma simpsons episode I decided to try doing some animation. I was a fan of Homestarrunner and knew at the time Macromedia Flash (pre-adobe buyout) could do some animation so I tried replicating simpsons character Cookie Kwon as a bodybuilder.
Here is a gif from the old .swf file
I jumped into it without any idea what the hell I was doing. After a marathon weekend I realized all my mistakes made the original effort unsalvageable and just wasn't happy with how the motion looked so I gave up on the project.
Then a few months ago I was reinvigorated to try again with another program called Toon Boom. Unfortunately after two weeks of tutorials I was getting bored so I skipped a few lessons and was discouraged by what they called the network in the program (parenting of symbols). To me it looks like a rats nest. I think the rats nest would be unavoidable with vector based animation of a bodybuilder because if I want to animate a muscle it will have to be a symbol then parented to other symbols and parented to rigging (skeleton) so now I am sad. I think this is why flash animation looks like a marionette and lacks the bounce and spring of classic animation. Very sad.