One of the students shared this with me recently and I thought you might find it interesting. Especially, those that are practising chords. Following this approach could make your practise sessions more interesting :)
http://www.youtube.com/watch?v=G3lmbc4sV0M&feature=related
http://www.youtube.com/watch?v=AOCLOIxBpk4&feature=related
Cheers, Ravi
