This is my tutorial on how to make bo-shuriken out of a stick of threaded metal. (works also without thread). These shuriken are of better quality and when performed well, they fly and hit very nice.
Materials youre gonna need:
-plyers (to grab the hot metal and temper it)
-your metal stick
-a Dremel or a bench grinder (grinder works better, i dont have one)
-a hacksaw (to cut your stick into size)
-wool (any color you like)
-a file / rasp
-a sharpy (to mark the center of your stick for balance)
-a grindingstone to sharpen your tip (final)
Step 2: Cutting the shuriken from the stick
you wanna wrap your hand around your metal stick and mark 1inch after your hand ends. now take your hacksaw or whatever and cut the stick at the mark you made before. Pay attention, the metal may get very hot while cutting. atfer cutting, take your rasp/file and file the one end you cutted before, so it gets smooth and plain. the other end will be our tip.
Step 3: Shaping the tip
after youve cutted your shuriken to the size of your hand, start shaping the tip. try to get a flat tip, then you shuriken will have more penetration. you can do this step either with a rasp, your Dremel or (works best) with a bench grinder. dont get the exact tip, just shape it. the detail work will be done after that. you may place the cutted & filed shuriken on your fingertip, and just get the balancepoint. its usefull to mark that point, look at foto.
NOTE if the tip is TOO thin, it will break off. so try to make it a good shape, just as on the foto.