Walmart offers an Elmer's 20x30" Guide-Line Paper-Laminated Polystyrene Foam Display Board bundled with your choice of Elmer's Glue for $8 with free shipping. That's $4 under the lowest total price we could find for this foam board and any single choice of the glue products purchased separately elsewhere. Sales tax is added where applicable. You can choose one from among the following: Elmer's Washable School Glue Sticks 4-pack, Elmer's All White Glue 4-oz. bottle, Elmer's Liquid Washable School Glue 5-oz. bottle, or Elmer's Liquid Washable Clear School Glue 7.6-oz. bottle.