"Oyster shooters...
I buy fresh shucked oysters from my local fish monger ....or I shuck my own ...as with clams the colder you make them the easier to open. If I'm short on time I will mix ice with kosher salt to really chill them 
I like to use…"

"Great Clams casino 
sharp cheddar or extra sharp either shredded or cut a block into pieces 
bacon just smoked , apple or other flavored doesn't work as well
Bell peppers and onions diced small 
I like cherry stones or larger top necks. Cut a pack…"