Apparently a lot of thought and good humor. Here are some of the, shall we say, unusual team names from actual teams in Madison School & Community Recreation leagues past or present.

The Flab Five
Ibu-Pro Set
Hacks R Us
Grumpy Old Men
Ball Gropers

Bump-Set-Curl
Sets in the City
Venus Envy
Strange Gloves
Wonderbroads

Pacifists with Sticks
It Takes a Village Bar
Village People
Harmony Kill-A-Brews
Steger-ring Fools

Wilson's Whackers
Wilson's Slackers

and the non-existent Joe's Atomic Bar and Grill,
and equally non-existent Couznofski's

Thanks to MSCR for compiling this list!