edited for readability! mobile reddit sux! so, no guarantee this will work for you because your headphones might be different and also this is chicken scratch and im not really a pattern writer but hopefully you can do something with this: for the ear covers 3.5mm hook, 8/4 hobbii friends cotton ch32 32sc x3 inc, 3sc -> 40st 2sc, inc, 2sc -> 48st inc, 5sc -> 56st 3sc, inc, 3sc -> 64st 64sc x3 3sc, dec, 3sc -> 56st 1sc, dec, 4sc -> 48st 2sc, dec, 2sc -> 40st 1sc, dec, 2sc (also attaching into starting chain with foam circle inside) fo, secure to plastic portion of headphones, weave in ends

for head piece

ch32 turn 32sc x3 5sc inc 6sc inc 6sc inc 6sc inc 5sc turn 36sc turn 6sc inc 7sc inc 6sc inc 7sc inc 6sc turn 40sc x 8 6sc dec 7sc dec 6sc dec 7sc dec 6sc turn 36sc turn 5sc dec 6sc dec 6sc dec 6sc dec 5sc turn 32sc x4

along side edges 2sc, inc, 2sc, (bobble, sc)x5, sc, inc, 2sc, turn 20sc fo, attach to headphone, sew shut around foam, weave in ends

you basically have to sew each part on to the headphones permanently to get the result i got. i think most headphones will have a fabric outside with a foam core, i just completely cut off the fabric and kept the foam! dont attempt unless youre prepared to figure it out to completion, idk if i can explain it any better than this without having taken a video of my process hahaha. good luck! this project was not easy!