Buy 4 eligible Goodyear or Dunlop tires at Tire Rack, and receive up to an $80 mail-in rebate. You can find links to all eligible tires here. Depending on which tires you choose, your rebate will be anywhere from $40-$80.
One option that will get you the maximum rebate are the pictured Goodyear Eagle F1 Asymmetric 2 tires which start at about $110 each. You will receive a redemption form within 1-2 weeks with a copy of your invoice.