Where do you find battery operated flashing lights for a firetruck cake and also fireturck sounds to play on the cakeboard?
I had a similar cake a couple of years ago when a bride wanted to surprise her groom with a police car. The groom was a policeman. I ended up going to Radio Shack and they had all the parts, but I had to build it. I used LED lights. It turned out great, but not without a lot of frustration. If you have a Radio Shack in your area, start there. I also went to a hobby train store. They were very helpful and had more of the parts I needed since they build train system. Good Luck.
Perhaps I'm too late, but I found battery operated lights at Michaels in the wedding section. There were 2 lights per package, and they were 1.99? They only had white, but they had blinking sets and non-blinking sets. They are supposed to last 8 hours. Haven't tried them yet.
Did you ever find sounds? I have a fire truck cake coming up!
You can find sounds like what you're looking for on the internet and download them. do a search for firetruck sirens.