craftgrrl | Anti stress balls? (Reply)

Hello girls! I need some help, sorry the post is a "need help" one...

I'm having a multimedia project in a college exposition. Next to the computer I would like to have some free little gifts that people would take home with them, that have to do with my project. The project is called "Equilibirum - Stress vs Calm". I wanted to do antistress-balls like this ones:

I got ballons and filled them with sand, but they don't stay round and nice!So, forget that.. Then I thought sewing fabric balls, but I don't have here a sewing machine, and perhaps the sand or whatever I put inside can fall trough the sewing holes...
I thought of other thing..
The "calm" part of my project envolves Feng Shui, and one of the rules of Feng Shui is having candles at home to provide a better envyroment to your life. I thought buying those little candles and put them in fabric bags with a paper explaining those things. (I would do the candles, but I'm not at home, I'm in a city where I study and don't have all that...).

Any crafty ideas for this?What would you like to take home, a souvenir from an exposition? What objects make you stress or make you calm that I can make?
This is for monday!!help:(

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