This was a clever idea from my friend Sue Tarr.  She went to restaurants that sell oysters in a half shell and asked to have the leftover shells!  Free shells.  Then she drilled holes in them for hanging.  I thought this was such a great idea for a cheap craft project.   (Be sure to clean the shells well before using.)

 I provided an assortment of seashells for the children to color.
 The children used basic markers to color the shells.

 

The shells can be colored and enjoyed as is or you can hang them on a string or wire.