We used wooden balls, purchased from Michael's and painted them. We used tham as feet and also as a knob for the lid.
You could place a small gift or gift card inside. You can also add pictures.
You can add pictures to both sides of the petals. This is cute and not to challending but the cutting takes time.
I have also seen this box done with the inner box off kilter and instead of pictures embelishing each side of the petals. If using embelishments you could use it as a keepsake or memory box. I will try that next time. It is a favorit of mine, but I save them for someone special. Try it out and see what you can come up with. If you need the measurements let me know, it may take me a little while but I will get them for you.