I mentioned that the giant Will Rock Guillotine was used by Alice Cooper. Dad did not supply it directly, but James Randi who apparently did, asked Pop to come and make some adjustments when Alice was in L.A. in 1973 I think.
We had an unfortunate experience with Grace Slick. She was doing an album cover using a levitation, but they wanted a large hoop to use rather than the slim version that most magicians carry. Pop improvised a mylar covered hoop that was not practical for stage use but might work for a photo shoot. The photographer did not like it so they used an artist rendering instead. I think Pop got stiffed on that job.
The one easily remembered and documented piece of equipment that he provided for a Rock Show was a Throne Chair for Ozzy Osbourne.
The chair was originally made for the Ice Capades segment he manufactured in 1976. Some of the props reverted back to him after the run of the show, including the Throne Chair Production. We refurbished it for Ozzy's Speak of the Devil Tour. I personally tested the chair out to see that it would work for an adult male. We saw Ozzy using it in a clip on "Entertainment Tonight" and I think Dad contacted them to make some suggestions because as he was performing it, it simply looks like he runs through the chair rather than appearing in it.
Ozzy Fans will know the chair from the album cover of that record. It is only partially seen but it is clearly the Chair we built.
My brother owned a poster with a much better image of the chair and Ozzy at the same time. I wish I still had it but I did find an image on line that you will be able to see.
Here is a second image that has another figure in the foreground.
Finally, I found a few clips that show the prop being used on stage.
The first one is the "Entertainment Tonight" Segment.
The second is the opening of the show in San Antonio. This may have been when he got in trouble urinating on the Alamo.
The Third clip is not very well shot but the impact of the illusion is easier to appreciate. The last clip is the shortest but the lighting and laser show make it hard to see.