Sorry, I haven't heard of one either..except for trouble's mistake post ! hahaha
I used to use a real pressure cooker on top of the stove..but, hey this was before I had a microwave...so that shows you how long ago this was.
I honestly don't need any of these things now because I don't cook as much and when I do I cook for only 2.
But a suggestion:
Although you aren't buying one from QVC, I just looked and they sell several makes. They show "on-air" presentations...
These presentations show how to use, different ideas of what they make...etc.
See if checking this out helps you in any way.