Stir the Greek yogurt, honey, and vanilla extract together in a mixing bowl until smooth.
Spoon a layer of the yogurt mixture into the bottom of four small glasses or jars.
Add a layer of blueberries and a few banana slices on top of the yogurt.
Repeat with another layer of yogurt, then fruit, until the glasses are nearly full.
Place the remaining yogurt in a zip-top bag, snip off one corner, and pipe ghost shapes on top of each parfait.
Press two mini chocolate chips into each ghost shape to create eyes.