An easy activity to do with little ones and great practice for hand-eye coordination.
block of Styrofoam (the white kind doesn't crumble as easily but I already had this one on hand)
large head nails or golf tees (I would have normally used gold tees but couldn't find them)
Noah hammered away for quite awhile and there was very little mess or prep. Pretty easy activity. If you have older ones let them use a scrap of wood, nails and a small hammer. Just watch out for those little fingers and you might not want them hammering on your dining room table.
If your little one has their own tool belt that would be a fun addition to role play a carpenter/handy man!