some of mine are
8 finger tapping
pick slides
take my picking hand and mute the strings by the nut and play legatoe with my left
play chords with my rite and solo with left
play same lick with both hands in different octaves at same time
(i got alot more but you get the idea)
any suggestians would be great and btw i am not using these to impress people i am using these to challenge myself to be able to bust out lick in as many different situations as possible with any type of restriction so any tip would help thanks