That's really cool, how did you grow them on the logs? I've heard of people using books they don't read any more to grow mushrooms, they buy or collect the spores, soak a book in water, open out the book, then shake the spores over the top and it grows. Well done on finding chanterelles, those are really expensive in the shops round here. I like them just fried with butter, or on pasta.
Rosehips are nice to snack on (as long as you eat around the seeds, they have itchy hairs on them), there's some near my house and I usually pick a couple to eat while I'm foraging other things. The only things I've been able to make with them is syrup and ketchup; they taste a lot like tomato but a bit sweeter, so they make a good sauce.