BINGO Components is a new company that is looking to make problem-solving products for your bike, beginning with the B1 headset spacer. These 5mm thick 6061 aluminum alloy spacers are anodized black and feature two loops to attach stem caddy-style bags.
You can run them above or below the stem and it even works with shorty MTB stems. These are made in Oregon and retail for $20 at BINGO Components.