Here you go have a lookie though these.
http://forum.a8parts.co.uk/showthrea...ght=stone+chip
I also have some bubbling but be aware the paint is quite thick when you get digging those bubbles out, as i found when i started playing with my filler cap. The finnish is less than perfect shall we say, although i don't have any bubbles.
Stone chip kits can be bought from places like paints4u where you'll get a good little kit that has everything you need.