How about dance? I love Scottish country dance - not sure exactly where you are, but there are a million chapters in Canada! And you don't need to bring a partner - people just switch around (I'm tall, so I tend to dance the man's part when there aren't enough men because it's easy to walk under my arm). Or try country line dancing or jazz dance, something that doesn't require a partner.
Another fun thing to try is "found sculpture" - keep an eye out for interesting little things, seed pods and gears and marbles and colorful stones and springs and stuff, build shadowbox frames (if you want to get fancy, use a mirror for a back) and arrange your little lost-and-found treasures (with the help of whatever fabric, yarn, twigs, spools, etc. you've got kicking around) into interesting little 3-D tableaux.
The most bored people I know are the people who watch lots of TV and play lots of video games. They forget how to make stuff up, and then they get bored. Make stuff up. Tell outrageous stories that you don't expect anybody to believe, just to get people's reactions. Pick something other than shoelaces to lace your shoes up with. Invent poppyseed waffles. Draw your own 2008 calendar. Write a letter to a fictional character who hasn't picked up on all the foreshadowing or is otherwise missing a clue. And give the zombie boxes a rest - they take away more than your time.
