smART Class: Floating on to ___ grade! End of the year project. Would be great for exploring circles or as an extension to a bubble exploration. Also, chalk on black paper can be its own exploration using both dry chalk and chalk dipped in liquid starch.
DIY: Thread Spool box- you could just use an old shoe box and then cut out a rectangle that fit the bottom. Put your desired amount of nails into it, and glue the rectangle with nail's head on the bottom down. Then paint the box.
In pantry for extra that won't fit into chest. Never thought of putting these magnetic spice containers on the inside of the cabinet door. Then chalkboard lids. for larger quantites, put in glass jars and place on shelf.