Microphones (1 Dozen) by CarnivalSource.com! These pretend play microphones make a great addition to any costume. Find more great items like this in our Miscellaneous Novelties category here at CarnivalSource.com. Add some fun to your playtime with these Microphones (1 Dozen)! Perfect for pretend play, these plastic microphones measure 5.5 inches long and are suitable for ages 3 and up. Ships from our Missouri warehouse within one business day. Enjoy this and many other novelty items from CarnivalSource.com!