I recently learned about an awesome Dr. Seuss-inspired field day planned and organized by Patti, an elementary school PE teacher. Here is one of her 21 stations:

Station 13

Title: I WISH I HAD DUCK FEET

Skills: GROSS MOTOR AND BALANCE

Description: DIVIDE CLASS INTO SIX TEAMS LINE UP BEHIND STARTING LINE.  HAVE 1ST STUDENT GET INTO POTATO SACK ON GO STUDENTS MUST (HOP) SACK RACE DOWN AROUND THE CONES AND BACK. THIS RACE ENDS.  THEN THE NEXT GROUP RACES. (THIS WAY STUDENTS ARE NOT TRYING TO GET OUT OF THE SACKS QUICKLY AND ACCIDENTALLY RIPPING THE SACKS)