On my bike commute home a few weeks ago, I found a baseball that had burst its stitching. It seemed interesting enough of an object, so I through it in my bag and brought it home with me. After a little research, I could hardly find any information where anyone had discussed making a baseball, even just the outer layer, so I figured it was up to me.
I spent about 3 hours total on this project - one making the materials and two putting it all together.
Step 1: Materials Needed
Scrap Leather (I used a 10x6 scrap and had space leftover)
Waxed Thread (9 ft or so) - I got this from the leather section in Joann's
2 Upholstery Needles
Baseball That Needs a Makeover
Cup of Warm Water
Step 2: Remove the Insides
Baseballs are made up of many layers of rubber/cork, varying sizes and lengths of strings, coated in rubber cement, and finally stitched with two leather pieces that are connected in 108 places with a double stitch that has come to be known as the baseball stitch.
I had no need to start from scratch since the insides were fine, but the leather shell on this ball had seen better days. I pulled out the trusty pocket knife and started opening it up a little more until I could pry the core from the leather.