Grab some. Pick 'em up and shake it. I got my first snowglobe when I was 4 years old - dropped. The moment I gave it a little shake was the same moment it shattered all over the floor. This happened every year until I was seventeen. Now my mom doesn't let me touch them, she just shows me by pointing to a high shelf.
(none of the snowglobes pictured were broken - none were mine)