Hi, Have a look on this website. www.littlefunkykid.co.uk
They do vests and babygro's that you can design yourself, so you could put 'welcome home daddy' on it or whatever you like. Also, you can get a photo frame, I think in Mothercare, which you can put a photo one side, and a hand or foot print on the other. Do that as soon as you can, then he will get a first pic to look at. I was in a coma after having my son, and didn't see him for a few days after he was born, so the first pic, was one a nurse took of him in the incubator in the special care unit, and even 15months on, it is the most precious photo I have of him. I'm a sentimental fool, but hey....who cares!!!
Good luck, I hope all goes well with your pregnancy, I'm sure whatever you decide on, your husband will love.
xx