Its really difficult to customize Google map with its new API system for noob developer who isn’t good at JavaScript. I’m also in this team, I was trying to enable and disable some feature of google map with its v3 API system. I got some valuable resource and sharing here.
Nice map themes are here
Build your custom Google Map within a minute
Googlemapbuilder Tutorial Here
Style your Map
https://developers.google.com/maps/documentation/javascript/styling
Some map style I like
http://snazzymaps.com/style/39/paper
http://snazzymaps.com/style/58/simple-labels
http://snazzymaps.com/style/75/shade-of-green
Share Your resource With me I’ll add them in this list 🙂