Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3127055.
Some decor mushrooms. They can be printed separately and connected through a stick system. In order to connect them the parts have some space between them. The optimal size of this space depends on your printer but others had good experiences with 1.5mm. You can download the parts with space sizes of 0mm ;0.5mm; 1mm; 1.5mm; 2mm; 2.5mm; 3mm. I recommend to try this distances before printing. For that you can print my testing model which is the puzzle-piece-shaped model above. Remember, when you scale the model before printing in your slicer the space between the parts might change too. The Parts can be printed without supports. The 10 parts contain all three mushrooms and the bottom, for a better stand.
Important: The Number after "f" is the part number. the following number is the space between the parts in mm. So you don`t have to download all parts but the ones you need.