Asking for suggestions for the most romantic 3D printed gift for my fiance.

I'm looking for ideas on a 3D printed gift for my fiance for Christmas.

I first told her I loved her in front of Van Gogh's Starry Night painting in New York.
After that, while I was undergoing cancer treatment, I arranged for the two of us to have the Van Gogh exhibit in Vancouver all to ourselves so I could propose to her there. It made front page news:

Attachment 18064

I'd like to recreate that moment with a gift. She loves snow globes and initially I was thinking about putting a 3D image of the two of us in the globe, but I have concerns about how long that delicate print would last underwater, plus I discovered a really cool rotating Starry Night globe online that I'd like to give her and I don't want to give her two globes.

So I'm curious to know if any of you wonderful people have any ideas on a gift that could somehow capture that moment. I'm dumb when it comes to these kinds of things.

TIA