Sponsorship

Hi,

Could some one help me on how i go about writing a letter for sponsorship, I've started a little clothing

label,and I have a great market but I dont have the right amount of funds to help me boost my selection,I am a very hard worker at what I do,and my work ethic attitude is always 150%,Im the type of guy that can think of ideas out side the box,meaning its gonna cost me but I know it'll have a great turn around,so please could somebody help...

Cheers

Beau