Pellet swap

I saw a Facebook site that did this and thought, why can't we do it here? Members can swap various kinds pellets with one another in small amounts, say 25-50 pellets for instance. Cost to mail wouldn't be bad and you'd get to try different pellets much more cheaply than having to buy an entire tin of each kind. Here is a link to the site:
https://www.facebook.com/groups/411465972630407/

Opinions??