Creative Writing
A common style of board game is one built around spelling words. Games such as Scrabble, Upwords and Boggle all feature individual pieces with letters. Such pieces offer ideal scavenger hunt items. Ask players to find letter pieces that spell out interesting words but limit the hunt to thrift stores or garage sales for a more thrilling chase. A variation would be to ask players to spell specific types of words, like animals or vegetables.
Wall Street Scavenger
Some board games come with play money; Monopoly and Life are two examples. Both games come with different denominations of paper cash one could search for in a scavenger hunt. Several options would work for this idea, including rewarding points for total amounts of cash collected or asking players to collect a specific amount of money, making players find multiple different types of bills from different games.
Guessing Games
Clue is a game that asks players to assemble evidence to help solve a murder mystery. In a scavenger hunt setting, players could work as teams to find objects to solve a mystery. One player who is not on a team could ask for players to find objects relating to the mystery and reward them with clues as they return items. Once a player has enough clues, he can guess the answer to the mystery. The first player to solve the mystery wins the game.
Do It Yourself
Most people have played board games at some point in their lives, but few have designed one. Build a scavenger hunt around this intriguing idea. Have teams spend a specific amount of time gathering board game materials from stores or yard sales, and then trading their haul with another team who then must create a brand-new game using only the items from their opponents. Once all the teams have created a game, players can take turns putting each game to the test.