This design I made to satisfy my own whim- It started as a cake stand. As it come together I started also seeing this as a seasonal centerpiece /stand.
The design is 4 pieces and if you do not glue them together, you can swap out the outer ring and the center voronoi piece with other colors. The center Voronoi piece was made in Make my Vase with all dimensions to 52mm wide and 99mm tall. I then centered(right click) it on the build plate in the slicer and added a negative cylinder of 52mm(x) x 52mm(y) and 99mm(z) tall.
The outer ring is a seperate piece so if you want to change out the decorations you just slip it off and add a new one in a different color etc. Same with Voronoi.
Decorating this was most of the fun!