Walmart offers the Cap Barbell Deluxe Tricep Rope for $9.99. (Amazon has it for the same with free shipping for Prime members.) Opt for in-store pickup to dodge the $5.99 shipping charge. That's $4 off list and the lowest price we could find. It features polypropylene braid construction and solid rubber handles.

Update: Amazon now offers it for $9.48 with free shipping for Prime members.