This page has 8 open house tickets on it. When I taught middle school, we did not have as much parent response as we had hoped, so I sent a ticket home with each student the day of open house. They could be brought back by the parents to open house (or signed and returned the next day since sometimes there are problems with schedules.) Then I drew a ticket in each class the next day for a +10 points on a homework pass (or whatever you would like to use!)
It did impact attendance during open house - there were some parents who only came because their child (8th grader) told them they wanted to be part of the drawing.
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