You would need it to be in Adobe Illustrator a .ai file... with vectoring, for the image cutting.
Yes if it was already made and i didn't have to sit at my computer creating it/modifying it, i could and would do it for a bit cheaper, instead of $10-12 it would be maybe $5-6.
But i went to wal-mart today, and got some Wounded Warriors decals, plain white, and they were $5 each... and they are only 6" tall and about 4" wide.
They had an assortment of other different colored ones in different sizes too, for like $7. All those are mass produced, and you think they would be cheaper.
I am busy tearing the motor out of my motorcycle, replacing the stator, and i am busy with wedding stuff with my fiance, plus i have lots of other projects right now... so the more time i spend creating and modifying graphics, i would expect to earn a few bucks.
So far i have done alot of Autobot and Decepticon ovals, alot of FORD and FORD RANGER and RANGER ones, a few 4.0L SOHC ones, but now these i already have created and sale for about $8-10 depending on sizes.
They cost me about $4-6 in material. So im not making a hell of a lot.