I lost the bushing for my Muddy camera arm, the plastic one that is in the base where the arm post fits. Anyone have any suggestions on what I can buy and use for this? I contacted Muddy but they don't have a replacement for this. I am trying to get them to send me one since I cannot afford to buy another arm just for that part. Muddy has great products, I wish I could buy more of their products but on retirement with limited money, it is not happening.