Here is my 2019 Christmas Ornament. I design one each year that I can customize with each family members name (look at my previous posts for examples). This year I designed a two part print in place tree ornament where the center of the tree prints with an integrated swivel axis. Once printed pop off the bed and the center can revolve inside the outer tree profile. I print the center of the tree with zero top and bottom layers and a honeycomb infill. This makes the names which are cut out as a stencil pattern appear to be floating in the honeycomb. I designed this in solidworks, and have included the raw solidworks file. Also included are an STL without the name cutout (you can use tinkercad or similar to make the name cut). And I have a fusion360 and X_T file for other CAD packages than solidworks. Feel free to modify, reshare, custopmize to your hearts content. I also included my PrusaSlicer 2.1.0 Project file as a *.3mf file.