Surfing Waves

Been looking at getting the GoPro on to a bodyboard (or the foamie we are about to get for the kids)

With foam being a little reluctant to take glue I have been looking at these, but £15 seems a lot for a plastic screw:
https://www.amazon.co.uk/GoPro-Bodyboard-Mount-for-Camera/dp/B00KCX8E1C/ref=sr_1_10?s=electronics&ie=UTF8&qid=1461411878&sr=1-10&keywords=gopro+surf

Given GoPro copy stuff can be very variable in quality I wonder anyone has seen a decent alternative, right now I am pondering this head mount but doubt it would float and dont like stuff on my head for sports like this (unless its a proper helmet):
https://www.amazon.co.uk/AmazonBasics-Strap-Camera-Mount-GoPro/dp/B00R4YCKIK/ref=pd_sim_421_9?ie=UTF8&dpID=516bRROc-gL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=BQ66DCX05N6794JDDD2F

15 British pounds does seem like a lot. Unless you are very mechanical, crafty, or know where to source alternatives from, then you will spend far more than 15 pounds in time and/or experimental solutions that don't work. Whether I used this or any other threaded anchor mount ("boilt"), I'd apply some thread locker to the threads. The expensive option is Lock-Tite. But, 3M weatherstrip adhesive or silicone glue / grout will work for much less. For giggles, I did a quick internet search and saw some things that may work. As far as attaching the camera mount to some of these examples, I'd glue it with silicone glue.