DISCLAIMER: I in no way am responsible for what you do with this fake knife. I am also not responsible for any damage that is caused during and after the process of creating this knife. Also while this knife is safer than a real knife, it may still be able to cause harm depending on the way you have created your knife.
Now that we have that seriousness out of the way, continue onto the first step where we will learn what is needed in order to create our own prop knives!
Step 1: What You Will Need
I purposely created this instructable in a way that is 1. easy for someone to understand, 2. uses household objects, and 3. is low on materials. The materials used may vary depending on what kind of knife you have. This may not make sense now but it will later on in the instructable. Here is what I used and what you will probably use:
-CD (These can be bought very cheaply at stores if for some reason you don't have one)
-Lock Blade Pocket Knife (Not huge wooden BUCK knives but the metal/plastic ones like what Gerber makes)(Your knife will not get damaged in any way)
-Sandpaper (I used a fine sandpaper but any kind works)
-Razor or EXACT O knife
-Fine tipped sharpie or pen
-Different sized screwdrivers (Either Philips or Standard depending on your knife)
-Allen Wrench or other tools that fit the screws on your knife
-Paint (Preferably gray or black spray paint)
-Various Drill bits
-Compound clippers (This is one of the items that you may not have and can be easily substituted)
Right now it may seem like this will be a hard thing to do but really you only use each of these things for a minute or two. Lets continue onto step 2 so that I can explain what is going to happen and how to prepare your pocket knife.
Step 2: Dismantling Your Lock Blade Pocket Knife
What you are going to do first is look to see if your knife has a clip that is used to attatch to your pants/pocket. If so, remove it (you will probably use the screw driver to do this). On ALL of my lock blades they have a side for a Allen wrench and a side for a standard screw driver. You are to take out the screw (stick the standard screwdriver on the one side and put the Allen wrench on the other and twist the Allen wrench counterclockwise). If yours has a different type of screw then try to find the correct tool for your knife. PLEASE be sure to be careful when removing the screw because after this is done the blade should be free of the knife. Be sure to keep track of all the pieces of your knife including the spacers and screw!
You can put aside all the knife's pieces except for the blade itself. Handle with care and move onto step 3!
Step 3: Creating the Fake Blade for Your Knife
Now that we have prepared the "blade" for cutting it is time to retrieve your clippers or whatever you are going to use to cut your blade out. Just follow along the lines you created and the cutting should be easier because of the exact o knife cuts. . Congratulations! If you have made it this far than you should have a piece of plastic that should look somewhat like a knife blade. Lets move on to step 4 for cleaning up our blade and cutting the hole!
Step 4: Cutting the Hole and Cleaning Up the Blade
Now that you are done creating the hole it is time to clean up your amazing prop knife. Go around the edges with your knife or razor and try to smooth thing out. Add a little edge to the knife and a point to the tip. I sanded mine to get the excess labeling and plastic shreds off. It is important to make sure you sand it so that it can look as realistic as possible. Move onto the next step to hear about how to paint your knife blade.
Step 5: Painting the Knife
-Grab the knife with needle nose pliers
-Spray as much of the blade as I can
-Get wooden skewer and put it through the hole in the blade
-Stick one end of wooden skewer into a crack or under something heavy so the rest is dangling
-Spray the rest of the blade evenly
You can also use acrylic paint to paint a white/silver line across the edge of the blade to give it that sharp/realistic look. Heck, you could even add splotches of red paint and give it a "used" look...
Click over to the next step for how to finish up your fake knife and some tips as well!
Step 6: Finishing Up the Project and Some End Comments
How can I use this into a movie?
Other than the obvious way of cutting people with it, there are other ways to use this knife in movies. Since this prop knife is so easy to construct, it is easy to make multiple blades. You can cut the top off of one with the clippers and repaint. Maybe even add blood! When it comes time to the stabbing scene, switch knives when the camera changes with the half a knife and it will actually look like the knife is inside of its victim.
Thanks for even looking at this instructable! This was my first one and definitely won't be my last! Please comment below and post pictures of your own fake prop knives as well! If you have any issues as well just send me a message and I am almost sure I will have a solution. See you around Instructables!