I keep loosing bone folders, a tool used in bookbinding, and need cheap ones for giving craft classes. They are fairly inexpensive online $5-$10 but that can add up fast.
I got a mold making kit for my birthday last year and played around with it a bit but not liking the project so I shelved the kit until a few days ago. I originally planned to buy the bone folders in bulk but the shipping was too much so I did the next best thing. I molded the remaining bone folder and then cast it with a quick set white plastic. They are perfect, just enough flexibility to work and strong enough to last. Or get lost. I need to buff them with steel wool now but overall this is great.