Do you know anyone who have lost their kiteboard?
I have made a website as a hobby project to create dynamic name tags: https://dytag.com
The main idea is: When you're traveling and there is your home address on your kiteboard. Would anyone bring the board back to you, to your home?
If you can put a custom info behind the tag, like "bring the kiteboard to kitecenter X and I'll buy you a beer", chances to get the board back are much higher.
You can put and change the info text before or after you have lost something. Just remember to add the tag beforehand
The service is completely free. I hope it helps you get your lost kiteboard (and why not all the other luggage etc. too) back to you.
I have used transparent vinyl contact paper (like kitefix/tear aid tape) to attach the tag to the kiteboard, but you can use a dymo, or even pen to write just the tag address (QR-code is optional)
I'm happy to hear feedback and improvement ideas.