This new Japanese product allows you to make your own cds records [embarassing typo fixed] out of scrap material such as old CDs. Link courtesy of Boing Boing. Translated text from the product site is below.
Record/Playback sound on thing like a CD-ROM or lid from a container of instant ramen using a needle and a cup.
Berliner-style turntable gramophone
In the 20th century this round record spread throughout the world as media that could both record and play back sound. The turntable gramophone that was invented by Emile Berliner, Edison’s greatest rival in the field of gramophones, is the ancestor of this product. Recording and playing with a paper cup and a cotton needle, anyone can easily make original records.
Recording and playing with a paper cup and a cotton needle, anyone can easily make original records. Recording, playback – a useless CD-ROM or an instant ramen lid are OK!
Setup takes about one hour. No special tools are needed; anyone can construct it with ease.
Even if you construct it in perfect accordance with the instruction book, the sound quality will still vary for some people. This is because if during the course of making a record even a mere 0.5mm of shake occurs, then there will be an effect on the state of the recording. Whether or not the operations of making a hole in the exact center of the cup or setting the angle of the needle are perfectly performed will appear as differences in the sound.
Due to the setting of the mount when recording, differences in those setting may make gaps between the grooves will be large and repair will be difficult. It can be said that proceeding carefully with construction from the beginning is the most important point for picking up clear sound.
Experimenting With Different Materials for Discs
Smooth surfaced materials such as a CD-ROM pick up better sound. Also, things like Ramen lids or soft files (what is that?) have a different textured material on the back. Compare the recording sound quality of both sides and the fact that smooth surfaces make for better sound will probably be confirmed. Also magazine covers-you might worry about the papers texture, but the hard coating picks up sound clearly.
Materials such as thin aluminum foil bags can be used if you insert something like thick paper or a CD-ROM underneath as a mat. The material of the mat will also affect the sound so all sorts of good experiments are possible.
Also, glossy photographs or postcards can also be used. Two people who both own one of these gramophones could exchange audio messages though the mail by recording on postcards and sending them back and forth.
Series name: Adult Science Series
Product Name: Berliner-style turntable gramophone
Product Construction: Parts for assembly, Disc, CD-ROM
Target Age: Middle school students and up
Weight: 670 grams
Box Size (in mm): 212d×160w×123h
Assembled Size(in mm): 185d×150w×180h
Construction time: 1.5 hours
Battery: Type 2 (they use numbers instead of letters in Japan. I can’t recall what size this is in the American battery labeling system)
Items needed in construction: Cellophane tape, Phillips-head screwdriver, Scissors
Produced in: China
Instruction manual: Included