When I saw these cool lighted umbrella's I said, "OK!" now there could be something here. Who has ever walked in the rain at night? I know I have, it could be leaving work or going out to eat at night and it just happens to rain.
We'll how about taking some very romantic wedding photo's at night...maybe sneak out while everyone else is eating dinner! These illuminated beauties would make some great wedding props and you could be helping out your photographer also with that extra light.
You won't be breaking the bank, Bright Night umbrella's are only $26.