Yas of Hyperdouraku releases his own set of BB Bottle Stickers. When using BB bottles he always writes on them to label them type and size of BBs, so he decided to make his own stickers and also the Hyperdouraku logo that you can also stick on your airsoft gun. They ca be ordered in Japan and interested shops can contact him for bulk orders.

For Biodegrable BB users out there, Laylax recently announced that they are taking pre-orders of their Laylax Bio BB Bottle. If you're worried that your Bio BBs that remained unused after openining the bag will start to degrade or warp due to exposure to moisture and ligh, then this is the answer for your concerns.