$1 off any Two McCain Frozen Products Posted by Harbor Master on 14 August 2017, 7:42 pm Tweet The Coupon Expires 10/31/17 (Note the longer Expiration date) The print limit is two. Click here to print $1 off any Two McCain Frozen Products Walmart sells 22oz McCain Frozen Smiles for $2.77. $2.27 each when you buy two and use the $1 off two coupon above. The Onion rings are really good as well!