Declare table as not replicable
The only way I know to do that is to leverage this limitation:


  Tables published for transactional replication must have a primary
  key.


Publish Data and Database Objects

So replace the table's primary key with a unique clustered index called pk_MyTable_PreventReplication or somesuch.

Merge replication requires a special ROWGUIDCOL column on the table, which you can prevent with security or a DDL trigger.