[Source] Unusual agate slab beads

Hi

I am looking for a particular shape, size bead for a new necklace of
mine. Here is a link to an example in Botswana Agate (hopefully the
link is allowed)

http://www.wondersources.com/product.htm

I am interested in unusual agates or jaspers with lots of banding
and color (Botswana Agate, Agua Nueva Agate, Imperial Jasper etc and
please feel free to make suggestions) The size shape would be
slightly free form slabs, center-drilled measuring app 18 mm top to
bottom and 12-16 mm side to side. It’s important that they be center
drilled though.

Thanks
Kim Starbard
http://www.kimstarbarddesigns.com