If any of you feed Eukanuba puppy, here's the site for a $10 off free coupon. That's enough to get a bag for free.
If you don't use Eukanuba, maybe just use the coupon and donate the free bag to your local animal shelter or rescue?
Coupon link is in the middle of the page, first one down from the top. Nothing to sign up for, just fill out the info and they'll send you the $10 coupon in the mail.