For the fruit: Combine the blueberries, blackberries, strawberries, honey and vanilla extract in a bowl and stir. Let sit for at least 10 minutes.
For the yogurt: Mix up the yogurt, honey and vanilla in a bowl.
Layer some of the syrupy fruit on the bottom of 4 small mason jars, then top with a layer of yogurt. Repeat the layers. Serve immediately or chill until ready to serve.