Don't know about keychains, but Carver Equipment has hats and caps (among other things). My dealer gave me a Kubota cap when I bought a tractor in 1995, but didn't mention it last year and I didn't think to ask.
Hello Jen.
Welcome to the site./w3tcompact/icons/smile.gif
There a company who carries some of the Kubota line such as you seraching for..key chains,coffee mugs,t-shirts,baseball caps etc..
The name of the company is call Swingers and there toll free number 800-258-7946.
Are you starting your chirstmas shopping early./w3tcompact/icons/wink.gif
Stay safe and/w3tcompact/icons/cool.gif