Daddy's Day

I need ideas people. I want to do something meaningful and cute for Matt for Dad's Day and I need ideas. I'm thinkin' of framing a few of his favorite munchkin pictures for his office, but other than that I'm at a loss... He told me all he really wants is a Home Depot card so he can get more plants and such for the yard that he's been working so hard on, but I want to give/do something for him from the kids that is thoughtful but won't cost me a million bucks. Any ideas? I know he wants to get another tattoo with the kids feet prints, but I'm not sure if he wants to do that now... HELP!