Could anyone suggest some catchy chemistry experiments or demonstrations, to be performed in front of a young audience? I'm wanting to volunteer at some of our local children centers, and do some experiments to interest them in Science/Chemistry. One cool, flashy experiment is to light my hand on fire - and not have to go to the hospital after. 

The general scheme I've found for it (I've not tried it - and the instructions aren't .edu or other '95% correct' sites, so if you know of any corrections for this please chime in) is:

50 - 50 EtOH and Water, plus a small amount of salt for color. Dip your hands in, light them on fire, the EtOH burns coldly enough that the water doesn't evaporate and your hand stays safe and insulated. 

Of course, I'll test it on small scale on paper in lab first. 

However, I'm initially hesitant to play with fire around children. For obvious reasons. 

Does anyone have anything similarly flashy or attention grabbing that they've used for a similar purpose with children? Obtaining restricted materials isn't an issue, but low-cost is preferable.  

Note: I know this stackexchange frowns upon questions that don't have a specific answer, with the rules stating that discussion type questions are non-preferred - but this question isn't for the meta site, and I trust this community of educated scientists to have better advice on experiment safety than say, the educator stackexchange, so forgive me if this doesn't fit the general site mold.
To talk to kids about chemistry I don't think you just need some exotic experiments. 

I visited the Sterling Hill Mining Museum and one of founders had a neat gimmick that got kids attention. He asked them to name some product that had nothing to do with mining. He'd then rattle off a number of things that are mined to make that product. So for a truck the oil and gas are from an oil well. The steel comes from an iron mine and the copper in the electrical wires comes from a copper mine. So have the kids try to name a product that doesn't use chemistry. 

Another thing that has always bugged me is the perception of the general public about "chemicals." It seems that the public believes that only things created in some chemical processing plant are chemicals. Well table salt is a chemical. Sugar is a chemical. A strawberry is a bag of water with a zillion chemicals in it. Take a vitamin tablet? The tablet is full of chemicals that our bodies need. Our bodies run on chemistry. So chemicals are all around us.