What’s That Sound? – Update!

Let’s play a game. Listen to this sound I recorded. Try to figure out exactly what it is. Let me know your guess on my twitter. When someone figures it out (or gets close enough), I’ll update this post with a link to download a nice 48/24 stereo .wav of the recording for any personal or professional use. This is a raw recording, by the way, no processing trickery.

Depending on participation, maybe this could become a regular thing! After all, who doesn’t like free sound effects?

UPDATE

Thanks to @jamesdbryant for guessing this first one! You can download this sound by clicking the link below.

Download Aluminum Foil Sounds 3.wav