Married Couples Mission Trips: Show Mercy International: December: Sr. High: Agriculture/Farming: $500 to $1000: 1 to 2 weeks - Browse by Start year : MissionGuide.globalMarried Couples Mission Trips: Show Mercy International: December: Sr. High: Agriculture/Farming: $500 to $1000: 1 to 2 weeks - Browse by Start year : MissionGuide.global