Simple noise generating pedal?

[WolfCathedral]

Hey Guys,

Looking for a simple noise generating pedal. Something that just clicks or oscillates, etc. Is there a simple way to achieve this? I plan on making a momentary feedback looper but I also want a pedal that generates its own tones/noise/clicks or whatever. Just something to mess with and add wacky delay on or something. Thanks!

[EBK]

I've accidentally built a dozen of those! 

[sanquilo]

try building an atari punk console! it's the most basic tone generator there is