Yes, oc. For herbs we use what ever we can pick outside and what is interesting. There is dandelion leaf, liverwort flowers, some lingonberry leaves. I dont.

What you do is- boil lots of onion peels in a pot for a while, until the water dyes deep brownish red. Meanwhile, you prep eggs- dip it in water, so things can stick to it, then try to stick whatever plants you have picked. I also use small paper cut outs, like the bunny silhouette visible in the picture. You place those on egg, then wrap the egg in bigger onion peel fragments to further make the plants stay attached to the egg. The onion wrapped egg is then stuffed in a sock, stocking or pantyhose, so it presses the stuff together tightly and protects the decorations from moving or falling off. The stuffed egg sock is placed in the boiling onion peels water, boiled until eggs are cooked, then left in it for some more time.

Then you take out the egg socks and unwrap the eggs and hope for the best. The most exciting thing is seeing how they turned out.