They're light and bright:
the balloon lamp is made of a standard rubber balloon and an LED light. They're available for $26 at Realm Dekor
. The LED light provides bright illumination while giving off hardly any heat - the light can be on for 100 consecutive hours. The balloon provides the perfect diffusion for this bright light. Grouping these in a balloon bouquet could be cute in a kid's room or a single white one might fit in over your dining table.