I give 10-points to the genius who thought of this idea: theSippiGrip Sippy Cup Bungee Cords. It's a bungee cord for your toddler's sippy cups (my toddler's favorite thing to do is to knock her sippy cups off of her high chair).
Sippy Cup Bungee Cord
|Sippy Cup Bungee Cord|
|Toddler Sippy Cup Bungee Cord|