Rosalina is designed to be compatible with all bottom's from the LEGO Mario collection, but there are no electronics in Rosalina. The skirt is a basic copy of Peach's, but there are no identifiers; so it's cosmetic only.
When printing, you can use a layer filament color change to match the white, blue, skin-tone as pictured here. I printed them in 0.08mm layer height. Included the 3mf with layer height “Pauses” for Bambu Studio.
Fitting the “hair” part onto the “body” part takes a little force. But once it's on there's no need for any adhesives! The other parts were secured with CA glue, but the “shoulder” are free spinning.
If you make a Kart for her, I also included a cutout matching Peach's design from my other mod here https://www.printables.com/model/689535-lego-mario-kart-logos
Enjoy!
The author marked this model as their own original creation.