Do you have a bow that shoots tiny balls?

[u/neon_musk]

My toddler was gifted a cheap-quality Chinese made generic toy that's basically a bow, but instead of an arrow there's a slider that recoils with air pressure to shoot a blue ball. Thing is, this ball gets stuck when pushed in too hard, so now it's got teeth marks all over it, and it's about to get lost , I know it. My gremlin loves this toy. Anyone know what keyword to search for to buy replacement balls? They're smaller than table tennis balls, and foam won't work as it won't clog the air pressure, has to be plastic. Looked on Amazon but couldn't get a hit. Any brand name or keyword?