Remember the high pitched musical greeting cards that would play "Happy Birthday to You"? I think they came out in the late 80's or early 90's. Now there are greeting cards that play portions of actual recorded songs. Or, you can record your own voice on some greeting cards.
I'm not sure how many of those cards will still be able to play even just ten years from now. But, musical greeting cards of 1950 were created in a way that they would still be playable today - 60 years later. The early 50's greeting cards had a music box inside - built to last! read more...