For each of the margarita layers add ingredients to the blender and pulse until smooth. (If mixture is too thin, add ice.) Pour into a container, and store each layer in the freezer while you blend the next layer.

Repeat for all three margarita layers.

To rim glasses with salt run a lime wedge around the rim of your glass. Then dip glass into a plate of salt.

Allow all layers to sit in the freezer for 15-30 minutes. Then use a spoon to scoop margarita into your glasses one layer at a time. Use small scoops, if you scoop too much at a time the next layer will disrupt the previous layer.

Layer your strawberry, lime and blueberry layers.

Serve with a festive straw and enjoy.