http://www.amazon.com/gp/product/B074SJXPHT
Hashtag #lights
These lights are really, really nice! I got them for my daughter to hang up and clip her pictures on, but I think that they would be great for greeting cards! The lights make them much nicer than just have clips or clothes pins. I was really happy because 2 strands came in the package and they were longer than I expected.