I want symbols associated with Shark Cults and Shark gods. A number of
Polynesian and Asian societies believed that sharks were gods or
spirits. I want the symbols that these beliefs created (eg carvings,
tattoos, statues, totems etc)

Hi pmfxb!
 
I have located some images of sharks symbolically used in worship.

George Belcher Gallery contains images of ceramic bowls and
water-sprirt headdress thay use the shark symbol.
"The Shark Collection"
http://www.gbgallery.com/GBGALLERY/shark.htm

Another example of shark use in totems is from The National Park
Service.
Here they inform website visitors of the Raven/Shark Pole.
"Carved History" Image 8.
http://www.nps.gov/sitk/Cultural%20Resources/Totems/RavenSharkPole.htm

Here we have a sketch of a totem pole including a sharks head.
MOUNT RAINIER NATURE NOTES. Vol. XII October, 1934. No. 10.
http://www.nps.gov/mora/notes/vol12-10c.htm

Here is an image of a shark tattoo that could be used for protection 
by a worshiper.
Lucky Fish Art
http://www.luckyfishart.com/tribalshark.html

Image number 7 at the website mentioned below includes a shark in 
the totem carving.
Civilization. "Argillite Carvings (Haida)"
http://www.civilization.ca/tresors/treasure/270eng.html


google search terms used:

shark OR sharks worship OR totem OR religion
tattoo shark sharks worship totem religion
carving shark sharks worship totem religion


Other interesting reading:

"Life Paths: Animal Totems & Earth Medicine"
http://wolfs_moon.tripod.com/ShadowShark.html

I hope these examples are sufficient for your query. Please
request a clarification if you would like more images!

Penguin