Looking for a decent creeper

Now that I have my Dart off the rotisserie, I'm looking for a good creeper. I've already had my bad experience with a cheap rig from one of the Chinese Super Cheap stores. I took it back and got a return because the casters wouldn't even swivel around after I laid down on it. I've looked online and found lots of options, but its hard to tell what works and what doesn't. Apperently "The Bone" is no longer manufactured; can't find one. What is your recommendation?

I gave up the search a long time ago and have settled on the Alabama creeper- aka a big piece of cardboard.