So, I just got done making a basket for each of the kids and hide them around the house where they have clues to their locations in the baby's basket. She will get hers as soon as she wakes up. When the boys ask where theirs are we will tell them to ask their sister, maybe she has a clue to where they are. The whole time DD will be digging in her basket.
Inside will also be a riddle card for DH. He will have several clues. He will have to read his silently though because they will all have something dirty to them, with clues hidden on my body. The end result is his is waiting in his truck.
DH is a mechanic, so I managed to find a basket made out of tires, that can be used to hold some of his tools afterward. I put candy in it as well as a love letter to him, and a sort of coupon book for him to redeem for thing slike sexual favors, nights off certian obligations, etc.
I havent done this for him before, lets hope hes surprised!