This might help you make something cool.
Step 1: Materials
You probably can use hand pencil sharpener but I think the ones they use in school are better.
Step 2: What Will This Do
This will only work for orange connectors and grey one slot connectors.
Step 3: Easy to Do
Just sharpen K'nex rod like pencil and push through connector.
Step 4: Last Trick
Use in K'nex gun to easily pierce cardboard. Don't shoot at someone because this might hurt them because it is sharp.