There are very few places anywhere in US that rent them as far as I know.
Never knew of any in Phoenix, or Arizona, or Western US so would also be interested to refer folks to.

Decades ago a place in San Francisco did but forced to stop when their business liability insurer found out.  Almost impossible to hurt yourself unless do anal which is highly NOT recommended.

I use to rent mine years ago until one was stolen even when prepaid but was a stolen check.  I posted the serial number on libchrist.com and low and behold someone who had it contacted me.  He was a biker rider going all over Europe and bought it at a flea market kind of place.  Wasn't worth going after and he was nice enough to actually call me when he say my site and checked his serial number.

I share it with friends and escorts but renting is just too much of a nuisance.  Besides being stolen often people didn't show up on time to pick up or return etc.

Years ago I used it in our couples group and even took it to a Lifestyles convention when I was also a speaker.  It of course is very popular.

I charged $100 for a daily rental.  

If anyone else knows of anyone would be interested.   Just talked to David Lampert (maker) recently - often do taking orders etc, have known each other from the almost beginning and met him a few times decades ago