Well..... I could suggest that a group of cowardly knights at a joust would be.....

Lancing, meek to meek

Or a group of birds flying to Paris from London in tight formation would be......

Francing, beak to beak

Jeez..... this is becoming hard work.....

Finally.... (cos I'm getting tired...)

A group of builders building a large house entirely from wood would be......

Mansing, teak to teak

Definition of a Manse

Thats it..... I'm exhausted.....