I hope this isn't inappropriate, But we have a new special effects sound system that is light weight, wearable, loud and very versatile! You can easily add sound to any costume and easily change it for your next costume idea! http://www.kickstarter.com/projects/vfxcreates/minion-actor-sound-system/posts/695487
This is a Kickstarter program so it needs to be fully funded by January 2nd in order for the product to come to market, so if you find it useful please help sponsor the project and get the Minion Actor Sound System at a below retail price. Please help by sharing the link with all your friends.
Thanks for your support!