I made three different types of molds: the key mold was made with the blue silicone, the pen was made with the two part pink silicone, and the quarter was made of putty.

I sprayed the key with release, but it would not come out of the mold, and when I forcefully pulled it out, it ruined the mold.  The  pen mold was successful, but my first try with the resin leaked, I should have made a mothermold to hold it together better.  The quarter putty mold worked, and for the project due on Wednesday,  I probably will use the putty mold with resin to create my keys.