Top row, left to right: Stapelia hirsuta, Graptopetalum hybrid, Crassula 'Buddha's Temple'Bottom row, left to right: Parodia haselbergii, Aichyrson bethencourtianum, Astrophytum myriostigma.
These are the IDs of the plants as given on the very informative labels. They included a common name, a botanical name, a brief description of growth habit, and growing instructions, all in a very small space. I do think the "Graptopetalum hybrid" is a Graptosedum though, maybe Graptosedum 'Bronze.'
The plants were all purchased from the Ted's Greenhouse/Cactus and Succulent Society of Greater Chicago booth(s).