Memory blocks or one that says DAD- I think this would be great to teach spelling and matching. Have blocks that have only pictures of thing s/people (I. mom, dad, dog) have them find hose pictures and then put the letters in order. And spell.
Baby's First Christmas Ornament. Modge podge a block. Put baby's name on one side, weight and length on another, birthdate and time on another and picture on other. Have a hook put on the top to tie ribbon to hang from the tree.