ba-dum tish

I thought that Marcel the Shell was funny. Even though I couldn't stand her voice. I found the voice really grating, but the jokes were funny and I appreciate the video as a whole. Now for a riddle.

Here I sit on the wall with my fellows who all know that we're out of our prime. I remember the times when I was a prize and a pride; the careful work put into me still shows. Yet, here I hang on the wall, built to soar, now unable to fall. If only this wire would break so I could remember the way it feels to be unrestrained once more. Loving the air, then hitting the floor. What is my purpose now? Must I sit here collecting dust for all eternity or will I be brought back to the glory of my purpose? I hope so. What am I?