Found on etsy:
Bronzing companies are still around.
American Bronzing
True North
Corporate Bronze
However if you are a : Do-It-Yourselfer
If you are creative, you may wish to bronze your own baby shoes. This process is somewhat involved but can give you a real sense of accomplishment. Your keepsake will be even more significant if you made it yourself, especially if you are giving the bronze baby shoes as a gift to someone else. To bronze shoes DIY:- Clean the shoes
- Form the shoes as you wish for them to appear once bronzed
- Apply rubber cement to hold laces or tongue in a desired position
- Let shoes dry
- Create a tiny hole in the sole of the shoe, run fishing line through the hole
- Prepare your liquid bronze
- Apply the bronze with a quality brush to the inside and outside of the shoe
- Once the shoe has dried, you may "age" the shoe by adding some black oil paint to the liquid bronze and painting it into the creases of the shoe.