In our preschool art rooms, our instructors use these bottles weekly to keep our watercolor trays wet while little ones paint. This keeps us from having to use water cups on our tables.  (keeping spills to a minimum)

We love this idea so much, we wrote a blog post about it here.  

Often times, it's the little artists who want to spray things.  

[Anything.  They'll spray anything.]

BONUS: Dollar Tree spray bottles are small and lightweight...perfect for little hands!

We hang paper on our chalkboard and these become the "targets" to spray.  If you add some liquid watercolors to the water, you can get some pretty {wet} art from this activity.  We recommend liquid watercolors instead of food coloring because it's washable!  (this is the brand we use)

If you set up paper targets, make sure you lay some towels down underneath them to catch the drips!

From an early education standpoint, spray bottles strengthen little hands for writing.  Spraying on on a vertical surface also works on shoulder and core stability.

Our artists who use acrylic paint, use these spray bottles to mist their palettes which keeps the paint from drying out while they are working. 

Our watercolor artists use them to re-wet their palettes or to wet their papers for wet-on-wet techniques.

It's fun to paint FIRST (with any type of water-based paints) and THEN spray it vertically.  The running colors and random drips make abstract art or the foundation/background for a mixed media work.