Today one of my workout partners called me up and wanted to do a "badass metcon involving the sled." So, here's what we did:

4 rounds for time:

• Workout A
  • Push sled + 135 pounds of weight 60 feet
  • Pull sled + 135 pounds of weight 60 feet
  • Push sled + 135 pounds of weight 60 feet
  • Pull sled + 135 pounds of weight 60 feet
• Workout B
  • Ride Airdyne bike

One partner does Workout A while the other one is indefinitely riding the Airdyne, waiting for his partner to bail him out. Ended up being fun and a lot more taxing than I expected!