So I know the owner of a small shop which manufactures some pretty cool things.  Now I have an idea that I feel would really sell a lot and I want to approach him about this.  I don't want to come off like a jerk selling him an idea, because he's a nice guy and I would also like him to make me one of these. However, I don't just want to hand over the idea and not have any compensation.

How do I approach him? Would you suggest trying to market it as a one-time idea or get paid a percentage per unit sold?  Or maybe just ask for a discount on some things in the store?  Should I just give the idea and hope he is nice enough to compensate me?  Thanks!
user
I have an awesome idea for a store that I would like to sell to the owner but
assistant
So I know the owner of a small shop which manufactures some pretty cool things.  Now I have an idea that I feel would really sell a lot and I want to approach him about this.  I don't want to come off like a jerk selling him an idea, because he's a nice guy and I would also like him to make me one of these. However, I don't just want to hand over the idea and not have any compensation.

How do I approach him? Would you suggest trying to market it as a one-time idea or get paid a percentage per unit sold?  Or maybe just ask for a discount on some things in the store?  Should I just give the idea and hope he is nice enough to compensate me?  Thanks!
user
I need a way to approach a friend about a new product idea without coming off as a
assistant