BCD Puller buoy

This is a little buoy I created for my Xdeep Stealth, to easily locate my vents wearing thick gloves.
They are slightly positive on fresh water. Will hover over your wing, but they're small enough to don't affect your trim.

If you feel that you can't ensure a watertight gluing you can always put some foam between both halves to ensure positive buoyancy even with a leak.

 I recommend a 100% infill.