$\mu$m), there is an observed improvement in R$_s$, presumably due to polymer shrinkage after the dissolution of the SF. As the printed graphene ink thickness increases to 25 $\mu$m, the electrical response becomes increasingly monotonic as R$_s$ drops to 71$\sim$88 $\Omega$ $\square^{-1}$ after transfer. We note that this is achieved without any post-processing other than drying at ambient temperature ($\sim$25 $^{\circ}$C). The predictable change in R$_s$ after the transfer process underscores the potential of this technique to fabricate electrical devices with well-defined performance parameters on to arbitrarily-shaped objects without the need for any post deposition treatment.

![Conformal printing on to various substrates. **a** In a spiral pattern on glassware. **b** On a 3D printed thermoplastic dome. **c** A 2 mm graphene strip on to a latex glove on a finger. **d** On a 3m textile bandage in a sensor pattern. **e** On to pink and white marshmallows, green heart-shaped gummy candies and two-toned white/pink candies. Scale bar 1 cm. Top view SEM images of the **f** section highlighted in red in **c**, **g** section highlighted in green in **d** and **h** section highlighted in orange in **e**. Scale bar 5 $\mu$m. **i** R$_s$ of patterns after water assisted printing on 