Possible Clues:

• Flip ___ (decide randomly)
• Flip ___
• Decide at the flip of ___
• Flip ___ (decide by chance)
• Flip ___ (choose, in a way)
• Words after "flip"
• Flip ____ (see who goes first)
• Flip ___ (decide by tossing)
• Flip ___ (see who goes first)
• Flip ___ (decide the easy way)