Here is yet another means to spruce up that gift card. Here is a ribbon and bow that slides over your card to give it some flair.
Print GiftCardBowPart1.stl with brim to avoid warping/lifting in ABS. I had a little trouble with this, but they still worked fine.
Once printed slide the long piece (GiftCardBowPart1.stl) over your card and then slide the assembly into the bow piece (GiftCardBowPart2.stl).
I started with the original ribbon and redesigned to allow it to fit snugly on the card. The two pieces hold themselves together via friction fit.