I just used some white cardstock as the base and the Love Me Do line from My Mind's Eye for the decorative layer. I opted to leave it without a handle, but you can easily add one with ribbon or wire.
I cut the scalloped mat with my Cricut as well and the bird and branch is a SU punch; they are both popped up for some dimension. I am loving all the boxes I have been finding, it's a nice change up from cards and I am getting quite the stash which will come in handy during the upcoming birthday season! We have quite a few in March, then a ton again in the summer months.