Thanks again everyone. Sirrahbed was the one who posted the directions on how to make them. It's kind of hard to understand them until you actually start making them. You do need a sewing machine unless you have a lot of time on your hands and can hand sew them. Even with a sewing machine it takes me quite a while to make them. I make the 24 inch beds because I have large cats and sometimes they like to cuddle. I also make the rims 14 inches wide instead of 12 inches. I have also made heart shaped beds too. Another PT'er even made a square shaped bed so you can feel free to experiment. Here's the link that Sirrahbed made:Tutorial For Cat Condom Beds.

Now Sunny and Sky also love them. Here are a few pictures as well as one of Pearl and Storm.

Sky:


Sunny:


Both Cats:


Pearl Just Can't Stay Away From Storm: