My reception hall has a very high (not attractive) ceiling. I wanted to hang paper lanters to distract attention from the beams & pipes. The only problem I am having is finding lights to put inside the lanterns. They have to be battery operated but most lights I've found only last a few hours....I need them to last days. We wanted to hang the laterns on Thursday & the wedding is on Sat. We can't hand them too much later than Thur since we can't have any tables set up when we hang them. Do you have any ideas of what type of lights might work?