Paper props are pretty much my favourites for scans. I mean, it helps that they're flat, so they don't go all blurry at the edges, but it's also nice to add a simple cartoon element or some cute paper thing. It just gives my face a bit more personality to surround it with paper hearts.
This reminds me of that one Photobooth setting where hearts float around above your head. A nice analogue webcam effect for my scanner. It just goes to show that sometimes the simplest artistic or visual concepts are the most fun and cute.