There’s nothing like a perfectly worn-in catching mitt. Soft and slightly tattered, it hugs your hand in the most wonderfully familiar, comfortable way. And now, you can stash your money in them, too.

PALM BEACH GARDENS, Florida – When ex-con ballplayer Harry Decker invented the first catcher’s mitt around the time pitchers started throwing overhand in the 1880s, it didn’t look like much more than ...