Update 2023.9.12 :lid sturcture improved

Update 2023.9.19 : I made both cover and the lid hollow so the sound gets louder. Rescaled the connection part to the pipe, it's looser so I don't have to sand my pipe to fit in

I made holes for M4 bolts and nuts

U'll need at least 2 srpings(4 the best) and a sharp nail(in the middle). An ordinary screw may not work well cuz they R usually not sharp enough. So I bevelled an M4 bolt with a crimper to make a sharp end. It worked well.

for the stick part, I screwed a 1m x 20mm PVC pipe

In my early design, I sealed the whole chamber up with the lid, it turned out that the pop wasn't loud enough, even no louder than the sound of it crashing on to the wall. So I made big holes on the lid. I suppose it would make it louder.