Home Slickdeals Pre-Order Mother’s Day 50-stem Roses $40. Free shipping from Costco. Slickdeals Pre-Order Mother’s Day 50-stem Roses $40. Free shipping from Costco. By ARCOM - 4 May 2020 137 0 SHARE Facebook Twitter Go to the deal page: Pre-Order Mother’s Day 50-stem Roses $40. Free shipping from Costco.