With the Mumba Heavy Duty Nintendo Switch Case, you may never need to worry about damaging your Nintendo Switch ever again. Amazon sells the clip-on protector for $19.99.
This Nintendo Switch case is a shell, so you push the case onto the back of your Nintendo Switch. A polycarbonate back cover adds a splash of color and protects the internals of your console if you drop it. Black TPU edges protect the sides of your device from scrapes. These edges curve so that you don't have to choose between comfortably gripping your console and keeping it safe. You can still remove the Joy-Con from the sides of your Switch with this case, but your console won't fit in your Nintendo Switch Dock.
Don't worry about adding some personality with this case. If blue isn't your favorite color, there's a green and black version too.