3-D Shapes Cut and paste!
Math Fun: Geometric printables (free) for use with the geoboard for kindergarten and early elementary ages.
3D Shapes Free Activities: a great pack of four super fun activities for learning about 3D shapes (solids). Sure to get the kids engaged in learning!
Worksheets: 3D Shapes FREE!
Tons of math worksheets for third grade. You say you don't teach third grade? Click on the "Show worksheets for" button and choose any grade at all!