I picked up a fireplace mantel job a few weeks ago and finally got some time to work on it. I still have to install it. It seems like a very simple design, but man all those miters takes forever. Good thing is that since the client is remodeling a condo and I don't have to finish it, just install it. The blue tape is holding the small trim pieces that will get set once the tile is in place. The matel is made from red oak. Neat thing is it was purchased for $1/bdft, so I figure I have about $50 in materials.
1) Pic is a wide angle of the entire fireplace
2) Pic is a closer shot of detail
3) Pic is an even closer shot of the mitered and routed detail
Enjoy.