Spitz,
Still trying to ID those first Sansevieria plants. Just a guess. #1 & #2 are looking kind of like variations of Ballyii. #3 looks like Francisii, and the last one #5 could be Haworthia longiana, or Agave striata nana. Leaning towards Agave. I don't have any of those so I just can't say. Most of my friends were confused as I was.
Stush