I recently made one and stuffed it with wadding and sprinkled a few drops of lavender essence on it and hung it on the door of our spare bedroom. It looked lovely!
I think next time I will probably stuff with a calico covered insert with some pot pouri in. I am also thinking about making it into bunting, what do you think? I think the 3-dimensional effect works really well. They are very simple to make and actually make a lovely heart shape. I crocheted using a 5.5mm hook as I lovely the chunky look and feel but you could change it around a little. Up to you!