Disguises are more than important when you are a high class spy. Some custumes I recommend are:

The clown costume~~~Keep gun in shoes, camera and other spy equiptment in hair wig or nose

The Tarzan costume~~~Keep gun in loin cloth, camera and other spy equiptment in hair wig

The Donkey costume~~~Keep gun in hooves, camera and other spy equiptment in nostril

The Snail costume~~~Keep gun in shell, camera and other spy equiptment in antenna

The Swedish girl costume (think Trading Places with Jamie Lee Curtis) ~~~Keep gun in chest, camera and other spy equiptment in hair wig