Step-by-Step Instructions
1. Cut the cardboard into a square about 12x12 inches.
2. Use a ruler and marker to draw a tic-tac-toe grid with 3 rows and 3 columns.
3. Clean and dry the bottle caps thoroughly.
4. Decorate 5 bottle caps with one color or symbol (e.g., X) using markers or paint.
5. Decorate the other 5 bottle caps with a different color or symbol (e.g., O).
6. Allow the paint or marker to dry completely.
7. Use glue or double-sided tape to secure the grid in place if needed.
8. Start playing tic-tac-toe using the decorated bottle caps as game pieces.