I have a Vax Blade 4 stick hoover that has a wall bracket/holder.  

It has screw fixings but I wanted to double-sided tape it to a unit.

However, the back is open and so nowhere for the tape.

I designed a backplate that can fit on this and still leaves the screw holes usable.

Print in PETG and glue in place and then use as desired.

The example print in the images is green as that showed up better than the black PETG I used where you couldn't see the details in the photos.

The provided print profile is as draft and fast as I could do as it doesn't need to look pretty.