For custom insoles you need to scan the bottom of your fit while standing on glass or plexy glass for best fit … for that reason most people creates imprints on a special foam and scan it after for reverse engineering of the insoles .
I am thinking to make a 3D print of the feet and use them as a planter… I like bizarre and unique stuff 
Yes but taking a foot selfie while standing on glass is a challenge 
Besides the opensource software Gensole does not require that
That foot planter idea is quite nice. might look into doing a rotocasting or slush mold from cement of my foot 
The cement idea is nice , would be great for a garden decor with some plants inside . Or just as an ornament under a bush 
But the foot changes it’s form while standing including toes .
Orthopedic insoles required that position .
No standing foot will never provide the proper support if insoles are based on it …
That’s a fact !
If you create simple insole based on the overall form and size only , then it is another subject . I refered to orthopedic insoles created from 3D scans to support proper the arch and foot position while walking .
yes, for that you need pressure scan or you can rig bones and do a simulation (not)
