What exactly does a concertina card imply? We all know the concertina is a musical instrumental, much like the accordion and bandoneon, which is basically played by stretching and squeezing. Well, this concertina greeting card applies the same principle, though without as many folds.
All you need is a sheet of card stock and some pre-designed paper printables (if you want). This card is actually pretty detailed, so make sure you have enough time to complete it, but of course, you can alter the instructions in this video all you want for a more creative and personal hinged panel concertina card.