How about something on setting ideas for scrappy blocks, there are some excellent books out there. There is one by Margaret Miller, though I think it's perhaps it's a bit too advanced as it's very design focused, but it would be a good read for whoever is presenting - she doesn't cover basic setting at all, for which I recommend Sharyn Craig's book on setting, as she sticks pretty much within straight, on point, sashing, etc. but does amazing things with them, often to the extent it's hard to tell where the sashing ends and the blocks start, or even realise it's a set of scrappy blocks.
I've also seen a really great design for scrappy nine patches recently, it's based on the trip around the world colour layout. It uses about 5 different values of one colour then you alternate a round of colour with a round of nine patches, I think with dark in the center. I've seen it done with a couple of different colours and it's looked great both times, the scrappy nine patches both people have used came from a group swap.
You could also talk about the scrap users system (the web link has been posted here before), maybe ask around and see if anyone uses it and interview them. Her site also has lots of photos of scrap quilts, so it might inspire you!
You could have a scrap exchange, ask people to fill a ziploc with strips of a minimum length and width of a single colour and then swap (I'm thinking log cabin here, I've been working on one myself and would love to exchance scraps of colours I'm not using with ones that I am!).
Cheers Anne