My hubby & I have been married over 30 years, at 35 yrs we want to be "remarried"?

Has anyone done this? Any unique suggestions on what to do? We want to renew our vowels and celebrate with our kids and family. We've not only been married over 30 years, but we dated for almost 9 before marrying! I want to make this not only special to us, but for our kids and their spouses and to be a role model. Thank you very much.