This is my contribution to #3dpnspeakercover competition. I made a cover that interacts with the soundwave. if you play high a enough you will achieve a highfive. It prints in three parts all with support. The needle is printed with 20% infill. With use of an solderiniron its easy to melt the parts together. Of course you can always use glue. The axel that mounts through the needle is made of an ordanary filament wire. Rinse the small holes to the axel with an 2mm drillbit.

The speaker cover in full action: https://www.youtube.com/watch?v=HUun82LuilY

Good luck and happy printing :-)