Does anyone know how I can make a oyster cake or if there is a baking pan I can use to create this?
hmm. i've never seen an oyster pan, could you carve it from a sheet?
Couple ideas.....
#1: use a football pan with a cupcake or cakeball in the center as the pearl....if it just needs to be oyster 'themed' you could use a mini/medium sized egg pan to make it and place it on a sheet cake
#2: It would be a fairly round cake, but you could use the sportsball pan?? With lots of dowel rod support.
I'm not familiar with it, but you could probably do some sort of sugar mold and set it on top of sheet cake? Can anyone brainstorm off that idea??? Hope it helps a little 
The oyster needs to be the whole cake and I was planning on making the pearl from a sports pan.
The oyster needs to be the whole cake and I was planning on making the pearl from a sports pan. like this picture. Do you have any ideas how they did this.
I'm thinking the bottom shell would be the cake and the top something like RKT?
Rice Krispie Treats.
I have baked cakes in pans I have molded myself using heavy duty foil wrap, double thckness and set on a sheet cake pan to bake. It took a bit longer to bake, but it worked. Now mine was just foil molded over a large champgne bottle, but I think you could get the basic shape of the bottom part of the shell by molding over the bottom of something you have that would be a similar size, like an oval serving bowl. I would not mold the foil completely smooth, but wrinkled in a few area's and then sprayed well with Pam before baking. The top shell I thnk would have to be molded of gumpaste, or the suggestion of Rice Krispie Treats covered with fondant.
I would do the pearl with a styrofoam ball covered in fondant and brushed with super pearl luster dust. But could be done as a small cake as well.
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