Ive had my crash helmet professionaly done by a vinal man and have been racing with various designs in vinal for around 5 years.
3 of the years were in Super 1, 2 in Easykart and Even used it over in italy for the World Finals.
(ignore friend tweeking my nipples, only decent picture i got)
You cant tell its stickers unless you are actually touching it. And a damn bit cheaper than paint!