I generally use the cassette tape sleeve rather than the actual plastic cassette tape. I didn't want to throw it out and and came up with another type of journal/notebook. I did find the inspiration from an etsy shop. Any constructive criticism would be appreciated. This is my first attempt at this type of journal.
Carefully take the cassette tape apart. Older ones have little screws, but you can easily pry one open with a flat head screw driver at the seams.
Take a cassette single sleeve and use it as a template to cut another piece of cardboard. You can use the sleeve, but I like to use that for another type of mini journal.
Fold the cardboard the same way as the template. Make sure that any design is on the outside of the sleeve. It will be covered by the fabric you have selected.
Cut a piece of fabric big enough to cover the cardboard. Give it at least half an inch (about 1 1/2 cm) of allowance to properly sew it around the cardboard.
Iron the fabric around the cardboard. Fold the fabric twice then iron. This will give it a neat "hem". You may have to cut some excess fabric to neatly sew the fabric onto the cardboard.
Sew the fabric onto the cardboard. I used a contrasting color to give it more interest.
Take a very tiny drill bit and create holes on all 4 corners of the plastic cassette tapes.
Sew the tapes on the front and back of the fabric covered cardboard. I used embroidery string and a bead for the enclosure.
Please follow this tutorial from CraftyMouse on Craftster (Thank You!) to construct the paper journal. You can also try coptic or some other method of stitching.