In real life, there is virtually no difference. Grassy on the left, Urban Decay on the right. Texture wise, I can't really compare as Grassy is a pressed eyeshadow while Graffiti is a loose pigment. I've got to say that Grassy is easier to use simply because Graffiti has such a difficult, inbuilt brush to work with. Still, if you were looking for a cheaper alternative to Graffiti, Grassy as a single is about $6 from Bella Sugar Cosmetics.
I decided to swatch Asphyxia, as well, to see if I could find a dupe in my (not very large) collection.
Nope. I don't think I have anything quite like it. I'm quite stunned by just how similar Grassy and Graffiti are, though.
