TechMatte via Amazon offers its 3-ft USB C to USB A Cable for $8.99, but when you use the coupon code X63CJZ9D the price drops to $5.99 Prime shipped. That's $3 off the regular sale price and the lowest it's been sold for at Amazon. "Featuring USB Type C and Type A connectors, this cable is designed for fast charging and syncing of your USB Type C devices, such as Nexus 5X, 6P, through standard USB type A port."
Also available is the 5-ft USB C to USB A Cable for $9.99. If you use the code 4N4GQVAL the price drops to $6.99 Prime shipped. That's a savings of $3 off the regular sale price and the lowest we've seen for it.
There are more discounted USB-C cables in a variety of colors and sizes:
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