Any Watch shop that sells Strap adapter for watches?

Hello, I have a Casio watch and I want to attach a specific type of Strap on it. It can't be directly attached to it hence it needs an Strap Adapter. Back in 90s and 2000s it was so easy to get strap adapter from any shop but now when I go to any watch shop, either they don't know what it is or don't have it at all. Me and my uncle used to attach so many colourful straps on our casio watches. Now you only see foreigners doing it. So uncool. I have gotten tired of looking for it online and offline. I don't wanna buy online because it's too expensive on a few sites where it's availalble. So can anyone, with similar experience, suggest me any Watch store where I can get Strap adapter from? In case anyone doesn't know a strap adapter looks like this: https://preview.redd.it/dhtwyjjlrele1.png?width=320&format=png&auto=webp&s=27cf7b782d1f44f03c8a5394083c7923467bffe6 https://preview.redd.it/x4wk6h6nrele1.png?width=323&format=png&auto=webp&s=b5a1f458e19d525c3410e87fcb1fa90b393851a4