So my dad and I want to do a duet (me on the uke, him on guitar) and neither of us are too keen on singing..any ideas? nothing to difficult, just easy and fun! thanks
It probably doesn't qualify as easy (although it is fun), but you and your dad might want to try Gypsy Ukulele at some point. (here are the uke tabs from Dominator) Based on the video you have on Youtube I think you should be able to learn it.
John King's books has several duets of various types for guitar and ukulele.
The Classical Ukulele
Famous Solos and Duets for the Ukulele
Make sure to get the ones with the audio CD included.
You could always just have a blues jam between you and your father. It will be just like Char and Jake Shimabukuro taking their own spin into the blues progression.
Another good thing about blues jamming is that it provides freedom so you can do a lot of things. If you stick to a certain song, it won't be as free so you'll have to play the same thing over and over.