For valentines this year, our son was “moving up” from his infant classroom to a toddler classroom at daycare. For valentines/a thank you gift I wanted to make something for them with my printer. I found this wonderful model from https://makerworld.com/en/models/135134#profileId-146637 but I wanted to have it stand up.
So I made a stand that you can insert the heart into! The tolerances are tight so its a decent friction fit, but I used superglue around the edges after placing the heart to keep them in-place just incase.