This is a remix from the original Iris Ball here on Thingiverse. I wanted a unique ring box, and she said the ring could not be 3d printed, which left me the box. I used a Stratasys Eden 260v PolyJet printer, so FDM resolution will not be as good of course.
I used a hard packing foam rectangle to hold the ring in place, then surrounded the ring with red tissue paper (didnt get a picture of that) for more white/red contrast. I have had 100% success in getting to marry the girl of my dreams, and you can too!