BuyElecs via eBay offers two 6-Foot HDMI Cables for $3.95 with free shipping. That's $2 per cable, tied with our mention from two weeks ago, and the lowest total price we could find for this quantity by $2. They feature 24K gold–plated connectors.
BigDeals via eBay offers the Griffin Male-to-Male 6-Foot Auxiliary Cable, model no. GC17062, for $3.99 with free shipping. That's tied with our mention from last week and the lowest total price we could find by a buck. This cable is compatible with most AUX ports via 3.5mm plugs.
Amazon offers Prime members the Etekcity 6.5-Foot HDMI Cable w/ Ethernet, model no. 025706346733, for $10.99. Coupon code "6FEET5OF" cuts it to $5.99. With free shipping, that's $9 off list and the lowest total price we could find. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $6.79.) It supports 3D video and 4K resolution and features gold plated connectors and a nylon braiding protection jacket.