Item Balloon

Baron von Zeppelins, also known as balloon bombs, are different colored balloons with smiley faces that appear in Super Mario World 2: Yoshi's Island, Yoshi's Island DS, Yoshi's New Island, and Yoshi's Woolly World. Barons usually carry harmful or helpful Items ranging from coins and extra lives to Bombs and Needlenoses and/or Shy Guys. Barons drop the item or enemy they are holding when a Yoshi goes under it (except in the case of 1-ups). Three Barons also carry crates together. They also help in the final battle against Baby Bowser by dropping Giant Eggs.

In Yoshi's Story, a similar type of species called Air Bags appear.