Here's a picture of my grandson's first attempt at making an Intarsia.
Woods used: Cedar, Pine, Walnut, Yellow Heart and Blue Pine, with a Birch backing.
The frame was made from a Redwood 2"X4", stained.
We used the basic sail boat pattern out of JGR's Small Intarsia book and changed it some to make it more accurate and added the frame.
I wanted it framed to give Michael the experience of making it.
He actually did about 90% of everything. He's the Grandson I gave the "No Strings Attached" Intarsia to.