Darts/shurikens. It's pretty self-explanatory. Please be careful and don't throw them directly at anyone, as they could cause injuries. They work well on cardboard, fly steadily, and have a heavy feel. It's recommended to print them at 100% infill rate, which ensures excellent durability.

You can also give the V2 version a try!

It can be used for commercial purposes free of charge!

Have fun:)