Thanks for all of your interest in the cats, and especially to those of you who passed on the information to others, which has made all the difference.
As of today, Armando, Tess, and Duke have all found homes. Thanks to everyone for your interest.
There are a couple more people coming by soon to see Larry and Olaf, but if they don't end up getting adopted by the end of this week, I'll repost with the new information.
Descriptions of Larry and Olaf are below. Thanks again to everyone for finding these kittens homes.