Let Start a big convo! (Please read?)

I have a button maker. And it makes 3'' buttons. 
Some of my old watchers have ordered custom buttons from me in the past, and i sell them at conventions that i work.
Now mailing these can get kind of expensive, like 5$ for shipping alone. 

And i know most of my watchers are in states WAYYYY far away from me. ;v; lol
SO The question is...

"Would you be interested for a custom 3" button of your character on it?"

"How much should these be sold for?"

Let the discussion begin! ^_^ 

Process! 

1. Sketch on the button paper!
2. Ink and then color with markers!
3. Mail it to you!

OR 

1. You send me a pic you want on the 3" pin!
2. I go down to the shop and print it!
3. Then i mail it to you! ;D