Built upon this design: https://www.thingiverse.com/thing:3603103
I simply took the file into blender, mirrored it to produce the right foot as well as the left. One file contains both shoes.
Be sure to produce this with enough infill, last thing you want is for this to snap and have a shard of plastic going into their foot. Also, could snap and twist/break an Ankle. I would do 90% or more. - Yes it takes forever to print but it is better than risking hurting someone.
Consider purchasing an insole, then putting a bit of rubber on the bottom for more comfort and traction.
These are no Red Wings, but dang do they look cool. Thanks!