Last month the Manhattan-based company Bespoke Global—which pairs its clients with accomplished designers and other highly skilled craftspeople for the development of custom furnishings—began working with four artists who specialize in wooden sporting goods. Their contributions have already expanded Bespoke Global’s line of leisure-oriented products, all of which can be customized. Jamey Rouch designs baseball bats ($350) that feature decorative lines made from individual blocks of wood. Masterworks’ Gypsy woo…