I've seen a GoPro Sticky Mount but the mount becomes permanently attached to the side of the lens. I've seen many players with that mounted on their...
I would stick to the Etek4 lt. The Axe is anything but a high-end marker and it can't even compete with other mid-range markers like the Etek, Drone...
If you need sweeteners then Stevia + Erythitol are the ones to go to. Theres even flavored versions of stevia for the ones who cant stand the natural...