/biz/ - Business & Finance

It has been 20 years I run my own retail shop in Belgium, selling various mobile phones, TV+Phone+Internet subscriptions, accessories and a lot of multimedia items (like radios, headphones, GPS, etc...). But one day, a competitor moved in my town and he started selling customised iPhone shells like this one you can see in the picture.

He is selling that like chocolate rolls and young people from schools in my town are going into his shop.

By the way, he sells that 15 € / shell.

I don't know how I can find any providers or something that could help me to sell the same thing but for a better price. So, do you know any? Are there any printers and provider to sell me the iPhone/ (if possible Samsung) shells?