To be honest, I was hesitant to do this because I thought it wouldnt work in my profession. But theres no downside to trying, so I did.
I'm not sure why you felt Hesitated when there is nothing to , because you are just extending the chance of costumers to have other option of payments as you don't know if the one who enters your shop is Bitcoin or crypto users , so this would help both of you as the costumers to use his/her bitcoin and yours to have more crypto on your possession .
After browsing the internet for a good bitcoin sign, I settle for this one. The sign is on my Secretary/cashiers desk next to the card that has my bank account details.
Maybe best to Put the sign also Outside your shop to attract more crypto users to enter and use your services as most of us are looking for bitcoin accepting businesses to help each other.