Created this flower special for prototyping the metallic purple that we made with Proto-Pasta February 1st, 2018. The model prints with out supports, both the flower and the leaves. There is a 3.6mm hole in the flower and leaves that is for inserting a wooden skewer. The wooden skewers I used were purchased from WinCo, the Good Cook brand. Amazon also has many of these skewers you can purchase for assembling these. You could also use a long M3 bolt.