After the eBay Mega Deal for the Hero5 Black, I was looking for some original GoPro accessories and found these. Not sure how much stock they'll have, so get in quick.
GoPro Chest Mount Harness $45 $25
GoPro Camera Tethers $29.95 $15
GoPro Head Strap $29.95 $15
GoPro Hero3 Replacement Standard Housing $64.95 $30
GoPro Spare Parts Grab Bag $29.95 $15
GoPro HD Hero Rechargeable Battery $39.95 $15
GoPro LCD BackPac $130 $60
GoPro Tripod Adapter $20 $10
GoPro Antifog Inserts $20 $10
GoPro Head Strap + QuickClip $34 $15