

Assuming the 'hollow-ness' is not used for anything, which I don't think it is then, expanding foam; cut back to just below surface; filler and sanded back and then some form of sticky-back plastic film covering the whole lot, tucked under the frame and finished off fully around the edges.
I don't think that's very likely, people in high heels generally have their wits about them and consider where they're walking/stepping.With respect, that doesn't sound very stable.
Someone in high heels standing on it will puncture it within seconds.
You don't stand on that bit. It's a rain deflector.With respect, that doesn't sound very stable.
Someone in high heels standing on it will puncture it within seconds.
Over your mouth would be more useful.Stick some duck tape over it in that case.
Over your mouth would be more useful.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local