S.K.
K.,
I did something different with each kid. We did the "baby" food dinner (baby back ribs, baby carrots, Easter Baby bread, Baby Ruth bar cake for dessert.) My husband had to think for a few minutes, but he got it.
With the first baby, I wrapped up a baby blanket I made and gave it to my hubby with a card that said something like "I made this and wrapped it up and so you can wrap up the real gift we made together coming in March."
We did t-shirts a couple of times. With baby #2, I brought baby #1 in to see Daddy with a "I'm a Big Sister" t-shirt on. The other time, we had just designed a family crest. I iron-on transferred t-shirts for everyone, including a little onesie and presented them.
Another time, I told the family we needed to have a party and I bought a balloon for each kid...with one extra.
Good luck,
S.