Wishnevsky focuses attention on using minimal metal in the construction of his basses, which he claims improves tone. He often features many different wood laminates to make up the bodies of his bass guitars, as do many of his contemporary hobbyists. The nuts and bridges on his basses are usually made of Corian, a plastic material commonly suggested for use as an alternative to bone, suitable for vegans and used by notable guitarmakers such as Gibson and Martin. Wishnevsky builds mainly fretless basses with no trussrods for cheaper construction costs. It is notable that although he is emphatic in using minimal amounts of metal in his basses, most of them feature an aluminum control cavity cover plate. Wishbasses are mainly built with passive electronics, and tone controls are not standard on Wishnevsky's basses. The lack of a tone control limits the player's ability to manipulate the tonal qualities of the bass guitar by electrical means.