This is specifically for a miniskirt that is attached to the base doll bodies I have patterns for elsewhere on this site. It integrates into the body itself, so it's not removable.
Pattern
Attach yarn at BLO round, doesn’t matter which stitch exactly
(SC 1 inc 1) round
SC 2 rounds
(SC 2 inc 1) round
SC 2 rounds
(SC 3 inc 1) round
SC 10 rounds