Step 3: Shape the CDs

Picture of Shape the CDs
Shape 2 unwanted CDs into a diameter of about 110mm – 115mm. See how big your bottle is, just make it fit in the outer bottle but larger in diameter than the middle cylinder and  inner tube.
reinzig3 years ago
"Shape" the CD's? How does one go about doing that? With a saw? With a grinder? ????
duckcrazy (author)  reinzig3 years ago
Sorry I missed this point. You can use a hot-wire cutter to do the job.
pic: http://imgs.poksi.com.mo/big/15120.jpg
I got some very crappy CDs that can easily snap into two layers when bend. then I shape then by scissors!