After listening to a musical birthday card being played about 85,000 times in a row, I decided that I needed to create a musical card that would only play when headphones were in. This simple project costs next to nothing and can be built by somebody with little or no experience in electronics. In fact, I didn't even solder when I was making this, and the total cost for me was free because I already had the materials on hand. I hope you enjoy hacking a musical greeting card!
Created by the Think, Plan Create Clan as a part of our instructables sponsorship guide.
Step 1: Materials
You will need...
* A musical greeting card
* A headphone port (I got mine from a mini FM radio from the dollar store)
* Thin stranded wire
* Wire strippers
* A Hot Glue Gun (With Glue)