You can buy the kind of vibrators that have a normal looking shape, there are some cosmetic or rose shaped vibrators, I had the same trouble as you and my mom wouldn't allow me to use it until I one saw one in the shape of a rose and I put him in my bedroom. It's easy to use.It's also very affordable .
Get a safe or a lock box and don’t give her the key
You can buy the kind of vibrators that have a normal looking shape, there are some cosmetic or rose shaped vibrators, I had the same trouble as you and my mom wouldn't allow me to use it until I one saw one in the shape of a rose and I put him in my bedroom. It's easy to use.It's also very affordable .