Banggood have the Blitzwolf usb-c to lightning cable (BW-CL1) on flash sale at the moment.
I also grabbed because i think its a good price:
BlitzWolf® BW-TC17 3A USB PD Type-C to Type-C Charging Data Cable 3ft/0.9m
for US$4.99 (AU$7.42) + GST delivered
(note: grab 2x BW-TC17 and get an additional 14% off BW-TC17)
which includes a free USB-A to USB-C adapter automatically when you add BW-TC17 saving you US$2.67 (AU$3.97) :
"Bakeey Type C Female to USB-A Male OTG Adapter Converter For Smartphone Tablet Laptop PC - Black"