Home Slickdeals Costco Members: 16″ squishmallows plush for $7.50 each (if you buy 4).... Slickdeals Costco Members: 16″ squishmallows plush for $7.50 each (if you buy 4). Must add at least 2 to qualify for buy more save more promotion. By ARCOM - 25 December 2021 49 0 SHARE Facebook Twitter Go to the deal page: Costco Members: 16″ squishmallows plush for $7.50 each (if you buy 4). Must add at least 2 to qualify for buy more save more promotion.