To answer your question Juerg, I use regular vinyl, depending on the type of vinyl you choose, the thickness will vary - for example, chrome vinyl is thicker than regular exterior vinyl. As for examples of my work, I've done every decal on my bike, you can do a search, it's on here quite a bit, I've done Red Bull stickers, Yamaha tuning forks, OEM style stickers...etc. Attached is one logo I designed a while back which I made into a sticker for my R1's windscreen. If you need anymore information, let me know.