DIY CD-ROM Cipher device

Here’s a good project for kids, take some old CDs that don’t work and make a cipher device to write messages to each other, blogith writes – “This is how to make a homemade Cipher Device for fun by recycling used or damaged cds. I did this fast but you can get more creative and make it a bit more complex or even more durable using stickers and other materials found at home.” – Link.

Related:

• Encrypt your text files… – Link.
• HOW TO – Analog text encryption-compression technique – Link.