Smoking-Hookah.com has these great accessories for you!  :
Glass Replacement Bases  
http://www.smoking-hookah.com/category/27001/
 just a sampling
Hookah Clay Bowls 
and much more
http://www.smoking-hookah.com/category/26001/
Hookah Grommets 
& more
http://www.smoking-hookah.com/category/29001/
Filters and Mouth Tips  
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http://www.smoking-hookah.com/com
Miscellaneous Accessories
http://www.smoking-hookah.com/category/30001/
Accessory Packs