It has been shown that multiple ionic diodes can be arranged to create logic gates. With extrusion printing, implementing new circuit designs is only a matter of creating a new 3D model to be printed. With no extra preparation necessary, complex arrangements of AND/OR gates can be fabricated and iterated with ease. Extrusion printing also allows these diodes to be incorporated seamlessly into designs with desirable mechanical characteristics. Skin and many other biological tissues exemplify strain stiffening behavior -they stretch with little resistance until a certain threshold, a critical strain, at which point they provide more resistance to strain. Such material behavior can be desired in wearable devices, like joint braces that help prevent injury. We have previously published a bio-inspired design that has tunable strain-stiffening behavior. In Figure ,