NRS Bungee Paddle Leash
Here's what other sites are saying:
Don't lose your paddle during that unexpected wet exit. Hook-and-loop closures secure one end to your paddle and the other to your hand or deck rigging. 3' long, 3 mm shock cord with swivel. This product is not intended for use in whitewater applications due to possible entanglement in swift water.
The NRS Paddle Leash connects your paddle to your wrist with three feet of bungee cord to keep it from disappearing when you set it in your lap to check your map or take a picture. Few things make the heart sink faster than watching your paddle float away while you sit in your boat, so avoid this scenario with the NRS Paddle Leash.
Keep your paddle with you or the boat during that unexpected wet exit.