In case my plane get lost in the wild :-D I've made some stickers with contact info, so if found - it can be returned.
As far as I know not all of us have color laserjet printer. And inkjet prints usually get blurred when soaked in water. In my case, my inkjet have black ink as pigment type of ink, which is waterproof. But if you like - feel free to change it.
Here is jpg demo and psd template.