One catch, I did have the sweet little red paper house from Marialunate on Etsy already so I didn't count that in my cost, but don't worry, I have some free options for you...... (This one's well worth it though, go check her out.).
The shadow box is 4X6 and found at the Dollar Tree. Other than that you will need-
One very eager assistant (optional)
First gather your supplies. So I mentioned some free printable options.... you can find them here, don't worry that you can't read a lick of it, all you need to do is click on the one you want to use then click the two buttons below the image to download the PDF. You could even grab a magazine and cut some images you like to create your scene.
Fold an edge on the bottom of each of your pieces so you have a surface to glue them down.
Cut your background image to fit the back of the frame. I use the people that came in the frame as my template, they won't mind.
If you have anything your going to glue directly to the back scene, in my case the house, glue it on now making sure to leave enough room around the edge for the ledge of the shadow box. Test to make sure it fits.
Start gluing your pieces to the bottom edge working your way from the glass back. Remember your working backwards, so what you put closest to the glass will be in the front of your finished scene. I glittered a few of my images as well so if you would like to add glitter do it before you start gluing things in.. Apply glue, what ever kind you like, I used a Martha Stewart glue pen, to the flap you made for your images to stand then press them firmly to the frame.
Add things until your happy then put your back scene in and insert the back of the frame. Voila! A cute little shadow box for you desk or wall.
If your curious, this is what the doll house set looks like when you assemble it as it's meant to be.
Oh, and I cut the house down to just the front with enough of the sides to make a glue flap for my shadow box.