The main attraction of this instructable is the LED has a throbbing effect which looks good with the heart.
For this you will need a image probably from a card like i have used or you can even use a personal picture of your loved one.
So if you are interested get started and have fun making it!!!!!
Step 1: Parts list
Pick any image of your choice. Or you can use the one i have used. i have attached a PDF.
BC547 NPN transistor
100uf electrolytic capacitor
470 ohms and 33k ohms resistors
LED preferably red
Switch (not shown in image)
9v battery adapter
Breadboard for prototyping