I always liked pirates’ chests, and thought it would be a challenge to make one, considering all four sides are angled (makes it easier to fit into a hole) and the top is curved (helps to keep the top from caving in when burried). Corners were glued and doweled. Top was made by fitting small strips with each edge planned to match the direction of the curve. A hasp was incorporated into a wood applique of a skull and crossed bones. Thin strips of wood were bent to follow the curve of the top and then painted gloss black to resemble metal straps.
When making a box, often the box is constructed and then the top is cut off, insuring perfect allignment. Since the bottom had angled sides and top did not, I had to construct the top separately. I build the bottom half, then covered it with wax paper, and then glued up the top in order to get the allignment.