01 - Preheat oven to 350°F.
02 - Slice off the top of the cob loaf and hollow out the center, leaving a 1-inch thick shell. Reserve removed bread pieces for dipping.
03 - Place cob loaf on a parchment-lined baking sheet. Attach small bread roll to top front of cob for head using toothpicks if needed. Position two small rolls at base for feet. Cut breadstick in half and insert behind head as ears.
04 - Press raisins or olives into bread for eyes, attach baby carrot for nose, and arrange small sprigs of parsley or chives for whiskers. Brush all exposed bread surfaces with beaten egg.
05 - Bake in preheated oven for 12-15 minutes until lightly golden and set. Allow to cool slightly before filling.
06 - Cook eggs in boiling water for 10 minutes. Transfer to cold water to cool, peel, and coarsely chop.
07 - Combine chopped eggs, mayonnaise, sour cream, Dijon mustard, chives, salt, pepper, celery, and bacon (if using) in a large bowl. Mix thoroughly until well incorporated.
08 - Spoon egg salad filling into hollowed bunny cob immediately before serving. Arrange reserved bread pieces around the base for dipping.