My brother got married recently in the Brigham City Temple. We wanted to give the kids something to do, so I made a quick sketch of the Temple for the kids to color at the luncheon. We didn't get time to print it off (busy morning :)) but it worked out. We rolled out a bunch of Kraft paper and let the kids color on that.
Here is the PDF for a printable coloring page of the Brigham City Temple you can use for church or personal purposes.