Signing the marriage documents, but the jeweller didn't finish working on your rings yet ?
So, 5 minutes of modelling and 30 minutes of printing and you have a solution.
I posted this model as a memory of a wonderful date with my wife.
Alexandra, I love you very much and I am eternally grateful to be your husband.
 

I also printed this ring box overnight to make it look more professional: https://www.printables.com/model/769333-improved-gift-ring-box/files