Thanks for your questions.
You are correct Fun Bags are made with similar machinery to Paintball bunkers. They can defiantly be used for both sports. Custom bags can be created with attachment points on all four corners.
However, Fun Bags are not homemade. They are professionally welded using standard hot air techniques.
Fun Bags are also more durable than Paint Ball bunker for a couple reasons.
-Fun Bags are almost TWICE as thick. They are made of 30 oz PVC, while inflatable paintball bunkers are made from 18 oz PVC.
-The valves are also different. Fun Bag valves lock closed so that under great amounts of pressure, i.e. you slamming into it full tilt on your kiteboard, the valve cannot open.
-Paint ball bunkers use a stopper plug. (See Below) If you land on a paintball bunker with any kind of force, the valve is going to pop open and deflate the bunker. Then you have to swim the bunker to shore and hope it doesnâ€™t get water inside.