Especially for little girls?
Not my area of expertise. I asked my advisor, who at least has recent experience of being a little boy. I think we can safely reject most of his contributions:
BMW MuseumDeutsches Museum Aviation BranchDeutsches Museum Motor Transport BranchCity Public Transport Museum
But then he came up with an absolute gem. If you have time/energy for a little trip out of town,
Wildpark Poing is absolutely great for kids. If you go, make sure you check the times for the falconry display. The
zoo in town is pretty good too, we used to go there a lot when my son was smaller.
Bavaria Filmstudios are pretty good for German speaking kids, but probably not much cop without language skills.
If the weather's good then you *might* get lucky and find the biergarten of the Hofbräukeller (Wiener Platz) is still open, in which case you can enjoy the traditional biergarten atmosphere and it has a good playground for the kids. It's also conveniently right across the road from Rumrich Stone Projects, a fantastic shop with probably the cheapest rock shoes in Europe e.g. Miuras normally around 110 €, often to be had reduced to 80 or so.