Overall, this project was simple to complete. However, I did run into some issue with plaster ratios. I made my 2 finger molds using 1:4 parts of alginate to water measuring with a scale. I placed 1 finger in the mixture for ~4 minutes until the material hardened. This protocol was successful.

After some trial an error, I identified the best plaster ratio to be 1:3 parts water to powder (measured with a scale). On my first attempt, I used about 1:2 parts water to plaster and my finger was brittle and broken when removing from the mold. In order to make this a wall hook, I added a screw to the base of the finger while the plaster solution was still liquid. I secured the screw with painters tape and allowed the plaster to harden. I finished the fingers using a couple layers of blue spray paint.

Final Results: The fingers turned out pretty well other than some minor imperfections. One finger has a small gap which I assume is from an air bubble in the plaster solution. Additionally, the finger nails have some chipping. 

Cost Analysis: Labor costs are $30 at $15/hr, plaster and alginate cost about $5 total, and spray paint cost is minor at $3. The total cost is ~$38 not including cost of scale, cups for molds, or screws.