The entire Barbapapa family (9 dolls), snuggly fitting together. You'll have to forgive the paint job, my 4-year-old insisted on helping!
There are 3 visual variations: The male members of the family, the female ones, and a special hairy one for the center piece, Barbouille. The 9 dolls have been modeled to have the same wall thickness and connector height, despite their different sizes.
All pieces should be big enough not to pose a choking hazard, but maybe err on the side of caution if your child has an extra-large pharynx.
I provided PrusaSlicer 3MFs with the below settings already configured. If you prefer using the STL files, please pay attention to the following:
The author marked this model as their own original creation.