I bought the Adafruit EL Wire starter pack in red and I was off and running.
I convinced myself that I needed 2 sections of EL Wire, 1 for each heart, but I wised up and did it with just one. The challenge was the crafty part (cutting hearts, sewing, the hearts to the cardboard, etc.
My original plan was to hot glue the hearts to some old glasses, but I found out that they work fine as an overlay to my regular glasses.
This was fun to do. I'll use EL wire again. Here's the video.