These days big brother is everywhere, with $10 or so worth of items you can build your own invisible "mask" to avoid any kind of identity exposure !
Here's a brief description as to how this works and why it's cool :)
You take a hat that looks good on you, hacking it to be a face mask for any kind of : Hidden, Security, Paparazzi or family member's video camera !
At the same time, when people look at you with the naked eye, they see nothing but you wearing a hat!
Now that's what i call stealth !
You can build it for as low as $10.00
8 or more High Intensity IR LED's = $0.30 each that's $2.40
1 Hat/Cap that looks good on you = $6.00 you may have one all ready
16 Thin wires that i got from a 2 meter long UTP cable = $1.00
1 Electrical Tape = $0.80
-Total Cost = $10.20-
For a better understanding of the project and it's effect i recommend you view video !
Step 1: Step 1: The Hat
I chose a baseball hat because it's often bigger than your (my) head and all the parts can fit well inside and it won't scratch or hurt my forehead !
Make sure it looks good on you and it can pretty much blend the LED's ... In my case it had some writing on it and it was white so the LED's won't be very eye catching...