TARDIS diorama, the most troublesome part about this wreath was dealing with the glittery ribbon and embellishments I got to go with the wreath. It took a little time as well since I work slowly. You'll need the following items:
Additional white garland to fill out the wreath (optional, mine just looked sparse and I wanted to bulk it up)
Blue and silver ribbon for the wreath
Red ribbon for the bow - I used a matte red and a glittery one
Embellishments in R2-D2 colors - I went to the local craft store to look through the bins for silver and blue items, remember you can pick them apart into smaller pieces. You can enlarge the supplies picture above to see the sort of stuff I gathered; there are leaves, sparkly ball things, and some ornaments
Red embellishment for R2-D2's sensor
Hot glue gun, glue sticks
Wire cutters or scissors
There's a lot of room to add your own touches with the specific decorations on the wreath since you may not be able to find exact duplicates of what I used.
I started by weaving portions of the extra white garland around the wreath frame to give it more weight:
Next I slathered hot glue on the back of R2-D2 (I call it the Mustafar experience) and attached him to the center of the bow. Voila:
Finally, use the wire you attached to the back of the ribbon to carefully place the bow on the wreath. I just tightly wrapped both ends of the wire to the wreath frame and didn't hot glue them just in case I changed my mind about placement. I love the result.
When I upgrade this wreath I plan to figure out how to make R2-D2 beep and boop when visitors approach the house. Also, I need to make a C-3PO wreath next year.