Hey again, so new idea. Sorry to waste your time to read that whole thing I wrote, I have a better idea. It still does involve a similar mechanism, however it consists of 2 main parts instead of 3. I would like to change it so its is more like a spike with 3 faces and goes on the top of my arm. And instead of 7 1/4 inches, maybe something like 9 1/2? there would be 2 parts one of them would basically be an elongated triangle on my arm and the spike piece would fit inside with a spring along the inside with prongs on the very back of the spike that stick out the two top sides of the base so it won't shoot out the front. Also a unlocking mechanism would be cool, if i could press it on the top somewhere on the base triangle tube to release the spike. If you would like an illustration, I can draw one.
Also don't worry about the spring, just name the size length and, if possible, strength, and I can get it.
Thanks!
-Edit
I'm aware that there are many other designs out there, but none exactly how i want it...
Also just changing the design because i think a hidden blade might be a little too original.
Last edited: Jul 30, 2013