what to do with a blue reflective umbrella

[SnlpeR]

i got a bunch of umbrellas and one of them happend to be blue
(dont ask...it was cheap)

what would you guys use this for?

all i can think of is little oompa loompa people

[Curtis N]

To stay dry in the rain.

[magicmikey]

My best guess is that it was meant to be used with tungsten lights and was used to help overcome the the color balance issue when using daylight balanced film. (Fortunately, that can be taken care of these days with a custom white balance or a tungsten preset white balance.)

I'm not sure how effective a blue umbrella would be at correcting the warm color balance.