Bridge Egg

Bridge Eggs is an item unlocked in the Raw Chicken collection (Level II) that can be used to create cobblestone bridges. When you use the item, the egg is thrown as normal, and a (very short, 4-5 block) trail of cobblestone follows it.

Trivia

 * Bridge Eggs are likely a reference to Bedwars, a popular Hypixel mini game, where the Bridge Egg has the same function.