Step 1: Give each child two toilet paper rolls.
Step 2: Punch one hole in each toilet paper roll.
Step 3: Staple the two rolls together with the punched holes facing out.
Step 4: Color the rolls different colors of green, brown and black all over.
Step 5: Tie a piece of yarn large enough to wear around your neck through the holes.
A very simple craft for even the youngest child.