I can’t find where I folded the model from, but I really like it. It’s very simple, but the form is right, it stays closed because the front heart locks into the far one on the top. You can open it and write your message inside, or use smaller paper and spread them around your loved ones.
These are folded from 30 cm scrapbooking paper, “mosaic memories” by Recollections.
Once again, this box is by Tomoko Fusè. It can be found in a japanese book, ISBN 4480872035, page 8.
It is folded from one sheet of A4 double-sided cardstock (150g/m²) by Maildor.
Nested inside are two masu boxes in 15cm flowery paper from Kyowa, and I just layed sheets of 5 cm crane folding paper from Jong Ie Nara on the masu’s bottom. It’s a bit much, but the colors fit perfectly together – it’s a precious little treasures box :)
I love this bat. The model is by Anna Kastlunger, and the diagram can be downloaded.
I love that it is simple-looking, yet very recognizable.
It is folded from 35cm double-sided kami. 
I was at a science-fiction convention last week-end, and distributed a huge bag of origami – people called me the origami faerie, it made me very happy to see the paper joy spead! The person who took this one seemed to have fallen in love with the model :)