Simple holder for power bank so your bag stays organized. The power bank in pictures is Anker's 165w 25k mAh with cables. Bag is Savotta's Askare.

The clip has a hole of 1,8mm so you can either use 1,75mm filament to secure clip in place or string or something else. It might also be fine without.

TPU might be a good material for the holder, but might require some scaling down. I don't have TPU at the moment so can't test it.