Environmental design for churches has changed drastically over the last two decades (at least on the fringes). It has become much more than church interior design. It has evolved into creating entire worlds and environments.
For example, when Cornerstone Harvest Church (Lima, OH) recently revamped their Heir Force youth ministry, they hired Little Mountain Productions to develop the environmental design. The result was a youth ministry design that featured a lifesize M-1 Abrams tank and 40 foot wing span plane coming out of the walls.
To complement these installations, Little Mountain Productions also added acoustic panel military graphics to the room.
In case you are wondering how they did it, here are some production shots.