Walmart discounts the Cap Barbell Vinyl-Coated Dumbbell Pairs in a variety of weight options, with prices starting from $1.29. (Prices are as marked.) Opt for in-store pickup to dodge the $4.97 shipping fee. That's a savings of $1 to $14 per weight and the lowest prices we could find. A couple of best bets:

• Pair of Cap Barbell 2-lb. Neoprene-Coated Dumbbells for $2.59 ($3 off)
• Pair of Cap Barbell 15-lb. Neoprene-Coated Dumbbells for $19.99 ($14 off)