Thanks for taking the time to show me, although I suspect you were looking for a reason to inflict some Devo on us
Yes the former is interesting with all its holes. Do you see dimples on the upper side of the plastic ?
I suspect the former is hollow, otherwise you would need a long drill.
I like the quick action of your home brew. Is that with a vac cleaner motor?
I have wondered about using a chamber to suck all the air out of first and releasing the chamber.
There is a lot of scope owning a plastic vac former. Making guards for cnc machines to cover up sin underneath. I would love to make and sell escutcheons to house monitors and also incorporate a space for knobs etc for cnc control panels. I reckon they would sell easily.
For the record, my favorite was "Twist away, those gates of steel" ( Mind you, its been 20 years since I heard that song)