I would love to make some of these types of things, but I haven't quite figured out the best way to collect an assortment of ribbon. I mean, there are tons of types of ribbon out there, but I'm thinking you want washable kinds, and I'd want to buy an assortment of patterns instead of lots of long rolls.
I saw a store once that sold odds and ends of ribbons. I should have nabbed them but wasn't in the market at the time...