I placed an order last week for a couple of different flavors of glow powder from: http://www.readysetglo.com/ and it arrived today! Shipped from Canada, so they must have shipped the next morning after receiving my order. I am very happy with that service.
It arrived as a couple of tiny ziplocks stapled (carefully through the top and not through the bag to a piece of paper with the instructions on it.
I haven't even opened the bags yet, but I did hold them under my black light for a few minutes and then go play in the dark. All I can say is WOW. Even in powder form the aqua glows like crazy, and I know that when properly applied it is significantly brighter.
After playing with the bag for a bit I did notice that my hands were starting to glow... So they will leak a bit.
I'm off to get some clear nail polish tomorrow and start experimenting with it. I was going to repaint some of the not very bright glow in the dark stars on my daughters ceiling with the stuff, but I think it might be TOO bright
I'm very happy with readysetglow.com. Anyone thinking about getting some of this to experiment with won't be disappointed! And they sell it in small enough quantities that you won't have to wait for a group buy.
Just be careful when opening the padded envelope that you don't cut into the baggies.