Hey Butterflywing- I think that if you market anything that is along the theme of keeping kids safer from the H1N1 flu, it would sell like hotcakes.
Terri-
My grandson's school had a craft sale to earn money for equipment and I made up a bunch of 'bath tea bags'. Some were for aches and pains due to the 'flu' and another set were for 'stuffy noses'. Drop them in the tub underneath the running water and soak. When you get out of the tub, just throw out the little bag. They were a success. Also had made some buckwheat bags to heat in the microwave and those sold well also. But of course, in your tropical paradise, you probably don't need something to hold on to in order to ward off frostbite :):)