This is gonna be a real quick post since we haven't had the time to document the process nicely as the deadline for this gift was really tight (few hours Oo). A friend really loves Ford Mustangs and always wanted to buy a old heap of scrap and make it run again ... well, we didn't have the money even for a scrapheap of a mustang, so "all i got was this lousy t-shirt", no? :).
What we did is basically make stencils out of tamiya masking tape (which sticks nicely to just everything - no overspray or paint running under the tape), masked off the rest using crepe tape and old newspapers and sprayed using some cheap textile-paints and a 0.4mm nozzle airbrush - after that iron to fixate, that's it. Here are the results:
The stencils are the official "Mustang running pony", which i sourced from here as a eps. The silhouette of the car is of a 67(?) Ford Mustang (fastback) and are sourced from here - in case you also wanna do one.