7 Hot melt glue-sticks, big enough that your LEDs can stick in each end, pointing to middle. You will also use a lot of hot glue so keep some extra around. 7 NPN transistors, I am using 2222’s ...

A glue gun that dispenses molten PLA instead of hot glue turned out to be a handy tool for joining 3D-printed objects together, once I had figured out how to print my own “glue” sticks out of PLA.

Random drippings from thousands of glue sticks make the outcome unique every time. When lit, Onishi's works reveal ghostly forms—incorporeal cars zooming through the room or phantom storm clouds ...