thanks for the suggestion though, these stuff is still very expensive eventhough I'm getting it from Scuba shop, it's going to cost about $160 to have all 6 tubes filled, when I'm done each stand is going to weight no less than 45 lb, hopefully it will be stable enough to combat my 1 yr old daughter!! LOL

I thought about using sand, but it's too light and very messy, perhaps I should hit up the local auto shop or junk yank and see if I can get a bunch of ball bearings!! :-)