Walmart continues to discount pairs of the Cap Barbell Rubber-Coated Hex Dumbbell in a variety of weight options, with prices starting at $9. Opt for in-store pickup to avoid the $5.99 shipping charge. A couple of best bets:

30-lb. Dumbbells (2 x 15-lb.) for $31.26 (low by $8)

50-lb. Dumbbells (2 x 25-lb.) for $45 (pictured, low by $32)