Don’t bother.
Wal-Mart sells a battery operated Fiber optic tree with 12" long threads and colored led lights for $6.00
At that price you can add Fiber optics to 3 or 4 models
I go to the computer graveyard of the office for some thin wires and stuff for my dioramas.
It’s a good thing to recycle and you are not alone.
I even was able to repair a neighbors PC with some pieces I got from the graveyard.
Me, I look at everthing as hobby supplies. Dead computers=small components off the PC board, Old kids toys W/motors= open the motors and remove the wire windings, old lighters= rubber gaskets and the striker reworked for a Zimmermit roller. I hit Garage sales flea markets dollar stores(great source for chains) good will. Hey any thing has potential!