One hurdle might be, if you eat your electronics, they no longer work. It’s true - you can look it up. Also, electronics fall very low on my list of delicious things.
God! There is a @falcor joke about consuming the electronic ghosts of be-jellied brains packed in here but I can’t dig it out.
but how do they taste?
If they can’t overcome the medical issues, there’s always the 3D printed sex toy market…
Coming soon… the rise of the robotic gummi bears!
Actually, a walking gummi bear could potentially be done with some electro/photoresponsive polymer. Think a few “muscles” from a stimulus-responsive gel that can contract and relax, using energy from light, and some feedback control via e.g. an electrical impulse (or chemical, via releasing/binding ions) to inhibit the contraction. Then make a state machine where a set of muscles contracts, while generating inhibiting signal for the other set, then stop generating it once the end of contraction phase is reached. The other set then starts contracting, while sending a relax/inhibit signal to the first set.
If the responsive photocontracting polymer can be done with some sort of polysaccharide or protein gel, and using e.g. magnesium/calcium/potassium/chloride/whatever_nontoxic ions for the feedback, it could as well be edible.
The contracting could be done by a conformation change of the polymer chain, or maybe by a slighter change (rotating hydrophilic/hydrophobic domains in a way to attract/expel water molecules to/from the coiled polymer chain). Photosensitive molecules that reversibly change conformation on being illuminated are fairly common (see e.g. photochromism).
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