Functioning TF2 Butteryfly Knife Balisong

https://youtube.com/shorts/IHuoRIZewV0?feature=share
Thank you to others for inspiration - I am certainly not the 1st to have this idea.

Print flat on bed, feel free to use the blade to push in the pins (or, say, a screwdriver)
I recommend assembling on a flat surface, putting the knife together in the 'closed' position.

To be clear, to assemble you need to print:
2x handle.stl
2x handle.stl mirrored on the x-axis
2x lower-pin
2x top-pix
1x grabber (optional)
1x blade of your choice

Feel free to open up the .blend and make your own edits!

The latch does not swing freely - mostly I keep it tucked, and use the thumb-nub as an indicator for which side of the knife is 'safe'. If anyone wants to continue this design, I think one could:

• Change the latch so that matches the in-game visuals
• Allow it to swing freely
• Have a thicker 'middle' section to the lower pins, to better stabilize the bottom of the blade
• Perhaps there is something that could be done with magnets

I know nothing of balisong tricks, just continuing to learn design, and enjoying this fun fidget from a true classic of a game.