Amazon: 1-Gallon of Elmer’s Glue for $10.97 (Reg. $20) This post may contain affiliate links or sponsored content. See Disclosure Policy. Amazon If you have a slime maker in the house run over to Amazon.com and you can grab a 1-Gallon of Elmer’s Liquid Glue for just $10.97 (Reg. $20)! This will ship free with Prime or a $25 order!