Cut your cardstock to the size you want and round the corners for a softer, finished look.
Use a ruler and black pen to draw a clean tic-tac-toe grid in the center of the card. You should keep the lines light and neat.
Add a few X’s in random squares to make the board look like it’s mid-game.
Place the glitter heart stickers in a winning formation, three in a row. This becomes the main highlight of the card.
Write “you won” above the grid and “my heart” below it, keeping the lettering curved and relaxed so it matches the playful theme.