I just put together 7 conference kits for the kids. Biscuit isn't ready for one.
The three oldest kids have a conference packet from www.lds.org that basically allows space next to each speaker's name and picture for them to take notes. They also have a sheet of conference squares (like bingo).
The next three kids (Hammy and the twins) have conference squares and they have conference coloring sheets-- also from lds.org. Peach just has conference squares.
Each child gets new crayons in their kit. The oldest four get a new box of 24 crayons. The twins and Peach get 8 new crayons. (If they get more, they just snap them in half and/or throw them.)
Each kit has a new pencil with eraser, a bag of yogurt raisins as a special treat, bingo markers (Easter candy on sale)-- a rare treat, a magnifying glass (for fun), and a couple Despicable Me 2 band aids (also for fun).
I think they'll be surprised. :)