Should I lie to my parent's about my upcoming marriage? I don't want them to disown me?

About 3 or 4 years ago, I suffered from a bitter break-up with a girl because she wasn't satisfied with my performance in bed. After that, I found comfort in a blow-up doll. Although, I don't like calling her that because I find it derogatory. I prefer to call her Veronica. In the past years, Veronica and I have gotten very close. She's my best friend, and nothing ever could take her place in my heart. I know she's the one. I want to marry her, but if I do, I'm worried about my parent's not attending the ceremony and cutting me off completely. I'm thinking of paying an organic woman to pretend to be Veronica at the wedding, but this is the most important day of our lives and it would make our wedding seem cheap and meaningless. What should I do?