The plaque is approximately 18" in diameter, and hangs from a wall screw.
Costs about $10 in terms of primer, paint, and assorted wood, and the installation is a cinch.
Step 1: Find a Template
Step 2: Trace It Out
I did the same thing for the star, which isn't a vital part of the plaque, but still an aesthetic add-on.
Step 3: Cut It Out
I just clamped it down and cut around carefully.
Step 4: Sand It Down.
The wood had a really ugly color before, and sanding made the grain patterns stand out really well.
Step 5: Make the Hanging Attachment
To make the hanger, I drilled a hole slightly larger than the hanging screw. Then I used a special router bit that makes hanging slots to make the slot that the screw slides into.
So that the plaque wouldn't wobble on the screw, I stabilized it with the dowel shown below. I used a 1/4" dowel, so I drilled a shallow 1/4" hole down the line of the center of gravity, and glued/inserted the dowel so that only 3/4" would stick out.
Step 6: Paint It
Because my shop has no ventilation, I spread out a small tarp and painted the plaque and the star outside.
Now, after finishing, I contemplated attaching the star to the body using Plexiglas, but that would look fake and tacky. The star can stand on it own in the angle between the hammer and sickle, but again, its optional. (The original symbol actually doesn't have the star in it, but its a nice Soviet touch).
Since the plaque is pretty light, I just drilled a hole in my friend's plaster wall, inserted a plastic screw anchor, screwed in the screw, and hung it. Simple installation.