UPDATE: I did the egg task today and it was a success. Thank you all for the ideas but in the end I ended up killing a tree and when eggs popped up, I had a friend harvest first then I harvested after. You are all awesome!
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I didn't think there would be a task more head bangable than the ghost task. Now I have "harvest the last egg on an egg tree" task. I don't live in a swampy area so I can't plant my own tree. The only other idea I have is get a group of friends together and have them harvest till there is only one left. But how many people would I need? Does anyone have any better ideas about this? Please share.