I have designed this headphone stand with an extra storage tray at the bottom to put cables, earbuds or anything else you want in it. 

Printing Recommendations (Based on how I printed it) - 

• 20% infill; I use gyroid infill and it works great
• 0.2mm layer height or possibly 0.12mm or 0.08mm if you want to get the curves neater
• This model uses about 130g of filament when printed with 20% infill
• On my Bambu Lab P1S, this model took about 4.5 hours to print