Santa Boot Mold Repair

I could use someone who knows how to rebuild the front end of a pair of Santa boots that broke, to include painting them. The closest example I can provide is this link that shows something similar (my wife bought hers at Ross):

https://www.walmart.com/ip/Sunnydaze-Indoor-Outdoor-Porch-or-Living-Room-Polyresin-Santa-Claus-Boots-Christmas-Holiday-Decoration-13-Red/315741395

I’m in San Antonio, TX and many thanks!
-Matt