I just booked a course for me and my man: natural dyeing with plants. I'm so excited, I've always wanted to try that and the best thing is that when I talked about this course I saw on a local school's website, Z also got interested and now we're going together! I think we will be collecting different plants the whole summer (if we're not longboarding).
And as the Easter is here soon, maybe I could try natural dyes for the Easter eggs too. I remember my mom doing that when I was a kid. Beware hippies, here we come!
Instructions here and here