Extend summer fun after sunset with a glow-in-the-dark game of tic-tac-toe! Select a flat outdoor surface and draw a tic-tac-toe board with sidewalk chalk. Make the squares large enough to accommodate glow bracelets as markers and let the games begin! Each player should have a different color of glow bracelets to best track their markers. Want more of a challenge? Toss the bracelets onto the board from a few paces away.