In most cities in Alberta, if you are released from prison, it is required that you are given a handgun with bullets and a horse, so you can ride out of town. In Toronto, it's also illegal to drag a dead horse, southbound on Younge St., on Sunday. Although my personal favourite is that in British Columbia, it is illegal to kill a sasquatch. All of these are real.
In some state it's illegal to carry and ice cream cone in your back pocket. Everyone knows that one but it's still my favorite ridiculous law.
In some cities in Canada, it is illegal to go around a moose that is standing in the middle of the road. I am certain that is a real law.
In NJ it's considered unlawful to say anything bad about "the shore" for 1 year after any natural disaster affects it. (I doubt it's true, but I learned it almost is the hard way)
One may not dye a duckling blue and offer it for sale unless more than six are for sale at once in Kentucky.