I’ve had some old waterbed frames (mostly 2×8’s and 2×10’s) that I picked up from a thrift store a while back for $2 each. When our basement flooded last summer, it ruined some of the furniture, one of which was the kids homework desk. I decided to replace them making some that were an exact fit for the space.
Then, I cut them to length, and glued them together, with four 1/2 inch dowels across the seam to help them hold together better. Then I spent a fairly unreasonable amount of time planing and sanding the faces down to be smooth. After several hours, I decided that it would be better to accentuate the flaws rather than try and sand them all out. I also realized, since it is pine, it is fairly likely to get scraped, marred and dented in the future, so I decided to burn the surface to add character.