The SL Unearthed BIG Things Small Packages Hunt will run from September 15th to October 15th.
The BIG Things Small Packages Hunt is a hunt for PETITE MESH AVATARS.
bl0g - http://slunearthed.blogspot.ca/p/current-hunt-info.html
if you are a merchant who wants to apply then you need to read & follow the instructions on the above blog link…
no starting location has been provided yet but if you check the blog nearer the time i am sure they will be posting it 
