Is this gender neutral idea TOO crazy? Also: nature names?

Sydney • ♒️😙🍁💨👽😻✌🏻🖤☯️🤝💋👸🏻💑🦑🌲🍄🌙☀️🌈☔️🍭🍽☕️🎨🎧🎶🏎✈️🏞🏕🏝🗾🌃🎞💡💰💎🚬💊💉⚰️🎈📚📝🖍💘✝️💯♻️🚺🇹🇩🇯🇵🇺🇸
I really like unique names. I really like gender neutral names. My name is Sydney, but if it were spelled Sidney most of you would assume "boy". My fiancé is named David. I really want to take his name, make it "gender neutral", and name my baby girl Davyd. Am I totally off my rocker or would this work? 
Also:
If you know of any unique names that relate to or remind you of nature or anything in nature or just the outdoors in general, drop them here please!
Some of my favorites include:
Rayne, Lakelyn, and Celeste for girls
Forrest, Leif, and West(ly) for boys
Jay, Reed, and Greyson for gender neutral