Here's another way. Then you could attach it to the back of your tank when dry. Just an idea...

http://www.youtube.com/watch?v=OIB1R...e_gdata_player

http://www.youtube.com/watch?v=ZyHjGwyNdMo

And here are some happy, little clouds too!
http://www.youtube.com/watch?v=raXan...e_gdata_player
Sorry, couldn't resist! Lol!

I hope you'll share with us what you decide to do with perhaps a pic when it's done .