I was invited on a blending class a while back, trying single malts from each region, understanding underlying flavours / smells etc and then mixing for fun with grain as the base.
Grain makes up a large % and for experimenting you can use miniatures from each region quite cheaply to sample / perfect your blend or get a group of friends to each bring a bottle from a different region to mix with your grain.
Islay for smoke / peat, lowlands for sweetness etc. Loads of guides online, great fun to be had, esp over a few hands of poker 🙂