My husband isn't a "touchy-feely" kinda guy either. I look at his parents and understand why. I've never even seen them get close to each other, let alone hold hands, hug, etc.
I told my husband once, several years ago, that it's good for our children to see that we love each other by hugging, kissing and holding hands in their presence. In June, when we were at his folks visiting, our son turned to us (we were sitting on the couch holding hands) and asked "Do Grandma and Grandpa love each other?" We said yes and he said "But they don't act like it. They act like room mates." My husband told me that night that he is so glad that, even though it made him uncomfortable at first, we hold hands and hug and kiss in front of the kids.
We hold hands in public, but we don't kiss. (Unless we're at his work for some reason...but when I say we "kiss" it's three pecks on the lips in succession which means "I Love You" and only if he initiates it.)
We don't cuddle in bed, but we do hold hands after sex.
If you want it more, tell him it makes you sad, and you know that he's not the touchy-feely type, but let him know that you're examples for the kids, and you want the kids to know that you're in love and it's ok when you're in love to touch each other. Ask him to start small...by holding your hand in the car, or while watching TV, or giving you a peck on the cheek or lips when he comes home from work, or leaves for work. Start small and go from there.
*hugs*