Thanks to the great interest in our custom built skiffs we are now offering the complete set of ladybug boats commercial skiff plans. our goal has always been to. Dudley dix yacht design. radius chine plywood boat building (as used for didi 38 "black cat" and others in the didi design range). View our collection of diy sailboat plans that feature boat design for sailboats of all types! we have sail boat plans for yachts, day sailers, and more..