Amazon offers the Lindt Lindor Truffles 9.3-oz. Bag in Dark Chocolate or Stracciatella White Chocolate for $3.99. Add it to your cart via Subscribe & Save and it drops to $3.79. With free shipping, that's about $4 under what you'd pay in-store locally. Each bag includes 22 truffles.
Note: Be sure to cancel Subscribe & Save once your order ships to avoid being billed for subsequent shipments.