paulandirene: Did those air pillows work out for you? I have a ton of them. My kids like stomping on them to make a big popping noise. I was thinking of getting rid of them, but that would be great to recycle them if they actually worked for you.
I've tried rooting plumeria in cut off soda bottles, but it didn't actually work for me and then they would tip over and I'd get perlite everywhere. I'd like to try this though especially since I'm doing more cuttings now and now have had more failures than I've had in the past.