Fantastic 4 Villains Cartoon

The comic book team symbols are there for the Justice League, Avengers, Brotherhood of Mutants, etc?

I am looking for any insignia, emblems, signs or tattoos, etc that unify the team comic book. Superheroes and villains. Especially the Magneto's Brotherhood of Mutants, The Avenger, Justice League and The Sinister Six. For example: X-Men just have a big X. X-Statix X is with a kind of extended bottom right. Hellboy & BRPD Co. has the symbol with her hand. The Fantastic Four have matching uniforms with four of them. The Teen Titans (at least on the Cartoon Network show) has a big T.

Not all teams have symbols. The Brotherhood of Mutants and Evil Sinister Six no. They were just individual villains who joined forces and never changed their costumes to become uniform with the other. Even if the government run Freedom Force, the Brotherhood was not a symbol of the team. The Avengers were essentially the same until the late 80s or early 90s, when some members began using a red sticker with an A. This is the best photo of him that I could come up with (is presented in the Black Knight and jackets in Crystal cover of Avengers 368): http://www.mycomicshop.com/search?IID=6631251 I do not know what is the symbol of the Justice League, but I found a site that says it is displayed in the center of the round table in the Hall of Justice on the Watchtower. Prometheus apparently downloaded the plans for the WT Grant Morrison in JLA # 16 that shows almost everything so you should be able to see him in this matter.

Fantastic Four Season 1, Episode 7 Super-Skrull (Part 1)