Grill Cherrystone clams in aluminum foil pocket (or cook in the oven) until they pop open.
Reserve all liquid. Remove clam "flesh" and mince. Remove all liquid from the shells for stuffing.
Prepare the stuffi ng by combining the minced clams, clam liquid, breadcrumbs, shallot, parsley, garlic, grilled corn, mayonnaise, eggs and Roasted Garlic Mustard. Season with salt and pepper.
Stuff the clamshells. Broil until golden. Top with crumbled bacon and serve.