Miles, Bailey and I just found our new favorite toy: 
NiteIze Innovation Meteorlight K-9. It is a rubber ball that lights up when you push it. This ball is perfect for Seattle winters when it gets dark out at 4pm. I don't know about your dog, but Bailey loses way too many tennis balls when it is dark out, and she rarely loses a ball!
The ball is powered by an LED light and it changes colors as it flies through the air. 
The dogs had no trouble finding the ball in the pitch dark and I was constantly entertained watching the changing colors bouncing through the dark. I bought the meteorball at the Queen Anne All The Best. They said they've heard from others that the battery lasts about 3 months.
I have hesitated buying this ball for so long because it is $11.99, which in my mind, is outrageous for one ball, but if the dogs can see this ball and we don't lose it, it may be cheaper than losing numerous orange rubber balls! 
This may just be how my neurotic mind works, but I am very grateful to not worry about having to rush through my day so I can play ball with the pups before the sun goes down. Or lets be honest, this time of year in Seattle, some days the sun never even comes out....
