FREE GUM Toothbrushes at Publix This post may contain affiliate links. Please see the full disclosure policy here. Posted on May 19, 2013 Written by Mary 2 Comments Free GUM toothbrushes at Publix. GUM Toothbrushes are on sale 10 for $10 ($1 each). Today we received a $1 GUM Products (including toothbrushes) in the Smart Source Insert, making these FREE after coupon! Coupon is found in the 5/19 Smart Source Insert thanks amy!