Lucy's next episode "Halloween Special" will be seen on 25 October on NBC. In the following clip which is set during Halloween, she's dressed as a Princess.
All Princesses, All the Time
Diane is less than thrilled with her daughters' costume choices
Here are some screencaps I created from the video
For more about Lucy's role as Diane on Parks and Recreation Season 5 visit the AUSXIP Lucy Lawless Parks and Recreation subsite