Tiergrade via Amazon offers its Tiergrade Push-Pin Magnet 60-Pack for $11.99. Coupon code "58GCY9X7" cuts that to $9.88. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.18.) That's $19 off list and the lowest total price we could find. Each magnet can pin up to 11 sheets of paper to any magnetic surface.