A halloween project

[scorpioRitch]

I'm trying to take a motorised ghost that runs on 3 AAA batteries. I would like to put two red flashing led's as eyes to flash opposite of one another and run off a 9volt battery with an on/off switch, ....please help! ....thanks!

 

[Harald Kapp]

You can buy a kit.
This has two red LEDs, a speaker and a motor. A microphone picks up noise and when a threshold is reached, the LEDs will blink, the speaker will emit one of a few different ghostly sounds and the motor will make the ghost rattle.

 

[user1234]

Here is that Velleman kit in English:
http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2187219_-1

Here is a circuit for a two LED flasher:
http://wild-bohemian.com/electronics/flasher.html

That example is even in a pumpkin.