There have been a few designs published for passive horns, devices that amplify the sound from your smartphone or tablet, so that you can enjoy music at home at the same time as having a meal, or doing homework if you are still a Uni person. These range from simple cardboard constructions to more elaborate designs,

The latest design for one has just been featured as a project on the "Instructables" website, and is so stylish that it will probable attract people into your home to admire it !

It is constructed from durable materials, and allows you to show off your crafting ability rather than knowledge of phones, tablets, audio or electronics. See what you think :

http://www.instructables.com/id/Styl...ive-Amplifier/

You could even make one as a gift for a Christmas present to a music enthusiast !

Good luck !

Phil ( really annoyed that two days ago I bought a Bluetooth speaker, and could have built this instead ! )