I first found out about these while looking for other nato straps. I found these guys on Instagram and noticed they posted about these reproduction Tropic straps. Took a little while for them to make it and they mentioned the introductory price of $9.95 each but then that changed to $17.95 then changed back again to $9.95! Weird..
When you order 5 or more you save 20% all together so I had to wait until they have the ones I wanted. But I finally got them (they ship from Europe). They're OK. You can see for yourself on the video I made for Instagram Stories. Enjoy.
Link to the product page @ cheapnatostraps.com