#14 Around midnight, whoever is on watch makes a Perception check to notice the sound of several small creatures attempting to sneak up on the camp. If not noticed, several 8 to 10 year-old kids from a nearby settlement charge the party with toy wooden swords to "test the group's mettle" (-2 BAB, d2 non-lethal).
It's possible they have mistaken the party for the cause of a more serious problem and are trying to deal with it themselves, and have bitten off more than they could chew.
Perhaps they are being stalked themselves by the wandering encounter.
#15 Just after the party sets up camp, an old man a few apples shy of a bushel approaches the camp rambling about the horrors he has seen in a war that ended over a hundred years ago. To the first character that addresses him directly, he pulls out an amulet, looks directly at them and hands it over while saying: "Good King Barised, as a token of our greatest appreciation for acts of kindness in the recent conflict with our most despicable enemies, please accept this meager gift that our nations may forever be allies."
He is in fact just the local beggar and crazy, but the amulet radiates a magic aura. The amulet is of high quality and valuable with an inscription on the back to a neighboring noble. It's also contains a magic trap with a rare and exotic poison for the first person to put it on.
#16 Instead of just a standard wandering encounter, there are two of them. They meet just in listening range of the party (or even at the camp) and start to fight it out. Tyrannosaurus vs. displacer beasts, goblins vs. kobolds, ettins vs. wyverns, or something CR appropriate. It's up to the party to decide when or if they wish to attack. How often do PCs get into 3-way battles?
