The first map isn't of my usual "testing the limits" style. Rather it is a hopefully reasonably realistic 5-2 Colorado. Democratic districts are a minimum 54% Dem.
The second map is a Whitty inspired Spiralmander that could both elect 6 Democrats and be an apt metaphor for the evils of gerrymandering.
1st (Blue): 56.8% D
2nd (Green): 54.1% D
3rd (DarkMagenta): 54.2% D
4th (Red): 55.6% D
5th (Gold): 54.9% D
6th (Teal): 33.5% D
7th (DarkGray): 31.4 % D
The blue district is 27.7% D. All other Districts are 52% D.