And so I remembered that my grandmother in Romania used plants and flowers to color wool. Well, if she could do that why would I not do the same? I mean, what better way to recycle than in an ecological friendly way? :) And that is exactly what I did: experimenting with ecological dye extracted from walnuts shells, red onion and beetroot (that's what I had in house). The results: unpredictable :)) Apparently old cotton sheets behave differently than natural wool. But that's ok, the surprise colors are also nice. All in all a nice DIY activity. Want to experiment also with eco-dyeing, take a look at the document where i summarize my experience. Happy crafting!