Happytrooper.com has created an excellent tutorial on how to make your own sound glove.

This project isn’t just for Star Wars fans, it's for any cosplayer that has a need to re-create their favorite character’s sounds. Not all of us can replicate Chewbacca’s growl, or give a Tusken Raider battle cry. If your character has unique sounds, you can take your costume to the next level with a 4 button sound glove. Hidden under your costume, you can trigger 4 different sounds by hand, amplified by a small speaker worn around your chest. This project isn’t terribly expensive, nor does it require a lot of time. You can complete the sound glove in just a few short hours, with readily available tools.

The heart of the sound glove is the MP3 board. I purchased this item online at www.electronics123.com. It comes in 2 versions. One version is thinner but requires soldering of the battery pack and control switches. The other version is a little thicker but only requires a small flathead screwdriver to secure the battery and switches.

Materials HappyTrooper used in his video:

Sound Glove Components from Electronics123.com:
4 button trigger MP3 board ~$24
9 volt battery clip or holder ~$1
Contact switches x 4 ~$1/each

Other components from Amazon:
Wrist Compression Glove ~$10
3.5mm (1/8″) mini to mini cable ~$2
Velcro ~$3
Voice Amplifier ~$25-$50

Recommended Tools

Scissors
Small Screwdriver
Needle/Thread or Sewing Machine
PC/Mac
USB to micro USB cable
Wire strippers

Acknowledgments:
Soundtrack: “Epic Trailer” by: Xedogen, available at AudioJungle

Please Note: The alternative MP3 player referred to in the video does now work on all windows versions i.e.: Windows 7 or later.

Please Note: The right most contact in the terminal block strip is NO LONGER a 2nd ground contact. That is now a busy port. So Happy trooper's wiring diagram is no longer correct as in his video. refer to our website instead.

NOTE: In  Happytrooper.com 's video he used a voice amplifier to connect to the MP3 Board. It is also possible to use a speaker that directly connects to the MP3 player.   If you do want to use a speaker instead of the voice amplifier, we have put a kit together, that contains all the electronics that was used in HappyTrooper's video. See this page to order the kit for $49.95!