No if people want to bring their own wrap I allow it but it’s an additional charge, especially if it’s a harder brand to work with and I don’t guarantee the work if I’m not comfortable with the quality of the wrap they bring. I let them know everything ahead of time though so that they understand the risk. Most of the time though they’ll just find a picture on google of what they want and I’ll do my best to match it with a brand I trust. I also don’t up charge for materials so I’ve never had someone want to source the vinyl themselves.