Some other Wisconsin things to consider...
"I Closed Wolski's" bumper stickers on about 1 of 10 cars/trucks/SUV's in and around Milwaukee (they can also be found at Dirty Nelly's pub in Shannon, Ireland along with a half-dozen Milwaukee Irish-fest bumper stickers).
The awful stench of the milorganite plant near downtown Milwaukee (it's so bad closing the windows and baking in sauna-like conditions is preferrable).
Menards home improvement stores in every decent sized city.
Rocky Horror night at the Oriental Theater is a cultural event.
The "real" Packers colors are green and gold... and blaze orange hunting parkas with road kill hats.
Pockets of Amish communities in rural areas. Most have a sign in their driveway, "no sunday sales."
In Milwaukee, drinking fountains are referred to as bubblers.
People can tell where you're from depending on how you pronounce "Sausage".
The Milwaukee Brewers hold sausage races at their games.
If you live in a rural area, there is a general opinion that if you're from Madison you must be a liberal. The farther north you go, the more pronounced the sentiment is.
For some companies, the opening day of the trout fishing and gun deer hunting seasons are paid holidays (it takes double time & a half to get people to work those days).
If you're not in a metropolitan area, ammunition for popular calibers/gauges of rifles and shotguns are available in most gas stations, hardware stores, and even a few grocery stores in small towns.
After driving for 10 miles with nothing but trees, you come to a crossroads where there is a sign for an unincorporated town, a bar, an antiques store, a gas station, and zero houses... then nothing for 10 more miles.
It seems that there are permanent fireworks stores at every other interstate exit. From May through July, there's two fireworks tents at every exit and also at most major road intersections. Residents can't buy all the "good stuff" (roman candles, aerials, etc.) but out-of-state residents can.
As a derogatory rip, Wisconsinites will pronounce Illinois "ill-i-NOISE" and Chicago "(slang for manure)-cah-go". They will refer to people from Illinois as FIB's (various interpretations of that acronym, depending on how well disposed the speaker is to people from Illinois, the nicest is "Friendly Illinois Buddy" and it goes downhill from there).
In Wisconsin, the Packers aren't a religion... they're more important. More fights are started over NFL loyalty than over which pew you sit in on Sundays.
Every small town seems to have a yearly festival which involves carnival rides, beer tents, and tractor pulls.
Milwaukee has an ethnic fest almost every weekend at the Summerfest grounds during the summer.
People refer to snow drifting across roads as snow snakes.
There is a real debate on whether Coke and Pepsi should be called "Soda" or "Pop".
If you go to the State Fair, eating cream puffs is almost mandatory.
June is "Dairy Month."
Chicken-Q's are common weekend fundraisers.
People in rural areas "road trip" for fun on Friday and Saturday nights (basically, just drive around drinking beer and throwing the cans out along the side of the highway).
The "secret password" to get into The Safehouse in Milwaukee is perhaps the worst kept secret in the state.
I'll come back and add more as my wife and I think of them.