V1
This is a 4x6 picture frame that I designed for my girlfriend. I printed each part one at time to make sure that each part would fit into one another. At the moment the push parts work with a little bit of post processing (I used a box cutter to cut a little sliver off to make them fit snug). I had originally planned on a slit at the top for the pictures to slide in, but in this revision that is omitted. To save on filament and time I used cardboard instead of printing the backplate so print at your own risk (should fit in snug, but again might need a little sanding on one side). The heart stands, decorative heart, and flower are all separate parts that can be glued on in any arrangement and scaled to however you want them before printing (I scaled the flower down 75% x/y, decorative heart scaled 200% x/y/z, and stands stayed same in cura). I included an example scene that I like a lot with the colors I plan on adding to my frame (minus the wood texture).
V2
I will most likely add in...

1. Working slit for inserting photo
2. Slit at bottom of frame to insert the backplate into
3. A very slight ledge on sides of the frame to hold picture inside
   V...
   Would really like to make a scad file that will allow choosing size of frame and other customizations.
   Please feel free to comment and ask questions :)