Art3D via Walmart discounts a selection of its 12" x 12" peel-and-stick tiles, with prices starting at $4.99. Plus, these orders receive free shipping. A couple of best bets:

• Art3D 12" x 12" Peel-and-Stick Stone Design Vinyl Wall Tile for $5.99 ($3 off)
• Art3D 12" x 12" Peel-and-Stick Groutless Subway Mosaic Vinyl Wall Tile for $9.99 (pictured, $10 off)