Is there a way to sell modules online?

Hello,

I've developed a module that I think is unique and addresses a specific business need within a vertical market.  I am curious if anybody has had any luck selling modules online at sites like Fiverr?  This module would just need some customization, which I want to provide, then hand the zip file over to the buyer.  Any additional changes would be for an additional fee.

Any insight would be greatly appreciated!