what else could I say?

I am only sixteen and I want a tattoo. Before you judge, this has a lot of meaning to me. I want a mother elephant and a baby elephant with their trunks intertwined into a heart. This would represent my mother and my other family. Both my mother and I love elephants and she has a tattoo on her wrist for my grandfather who died. I want it on my wrist like she has hers. Only problem is she is going to say no. I am doing a bunch of research on tattoos, cost (which I will pay for), and artists and am going to put it all in a very neat power point presentation. I know there can be issues with finding work, but I do know how to cover it up (I have a particular concealer for that), and now a days a lot of places don't mind too much, and the place I want to work I would most likely wear long sleeves anyways. What are some other things I could tell her that could convince her? I do know that the tattoo place where I live does give tattoos to minors with parent permission, ID and birth certificate.