From the shop Pop Addict The pop culture, retro, t-shirt shop:

Rocking graphic of a skull engulfed in flames. A heavy metal image of a demon skull on fire is a symbol of rock and roll. This fiery image is great for those who with a burning passion for fast life.
Sizes: S,M,L,XL,2XL,3XL.
Colors: Black,Cardinal,Navy,Military Green,Red,Royal,Brown,Charcoal

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I just finished watching Ghost Rider with Nicolas Cage.   I enjoyed the movie.  Flaming skulls are always cool with me and riding motorcycles up the side of buildings definately can have its benefits.  This distressed flaming skull head reminds me of the Ghost Rider so I thought you might get a kick out of it.

From the shop PhoneBin - Shop:

A cute skeleton raises it’s boney hand in salute
Sizes: S,M,L,XL,2XL.
Colors: White,Ash Grey

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This cute little skeleton looks like it just came off of a little cartoon or anime human.  With a nice orange outline this little guy is sure to scare the bones off of anyone.  Well, perhaps not anyone.  Maybe a small child, but I think that most people would rather hug the little guy.  Either way, I like this hooded sweatshirt because it shows that not everything scary need to be ugly.