While on the subject of velcro, I've glued a little tab of the stuff to the back of my old
handheld GPS and its mate to a high and dry spot just inside the companionway. It allows me to access it quickly without having it slide about a wet cockpit, and I don't feel obliged to install some sort of overkill teak holder for it (it's a steel bulkhead and affixing wood to it is labour-intensive and is to be avoided). It's also good for affixing the sheath of a deck knife to the (steel) binnacle. If you find you're brushing past it and tearing it off, it's no big deal to reposition elsewhere as you haven't drilled holes to which you feel "committed".
Velcro is so useful aboard that I keep a roll in a locker. The stickiness of the peel and stick stuff can fade in time, so keep a bit of glue and screws handy.