They'd make great sculpture bases.
Or how about an Andy Goldsworthy?
Jerry & Mary B wrote:
> Hi all
> I have access to lots of polished granite and marbles pieces ( about
> 3x3in ). Any ideas? They are thick (1 1/2 in) so lots of them would
> be heavy . They also have sharp edges. I 'd like to use them with my
> middle schoolers.
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