I've had some requests to do some clean metal guitar parts in drop tunings. Absent a working video camera I've just posted the guitar tab. The tuning for these licks is Drop D Down a Whole Step so from low to high CGCFAD. Here are a couple licks I used finger picking but you can also try playing with a pick and fingers too.
The first guitar lick is pretty straight forward it closes with a kinda classical sounding pattern that I like. A great extrapolation on this type of diad playing at the end is Joe Satriani's "Baroque".
The second guitar lick takes advantage of the drop tuning shape and uses a barre across the top three strings. I've used 5/4 here as a time signature. Try altering the rhythmic values and come up with your own guitar licks using similar patterns.