How to make a headphone holder

hot glue four cans on to the cardboard. (if bigger cans the better)

hot glue three smaller cans on top of the four other ones and duck tape the three cans to reinforce it

put paper maché on the cans and try to make as little amount of cans visible

Get any type of paint and paint the cans after the paper maché has dried

spray paint and wait to dry and you are done