Using an alphabet fondant cutter set can be a fun and creative way to decorate cakes, cookies, and other baked goods with personalized messages or names. Here's a general guide on how to use them:

Prepare Your Fondant: Roll out your fondant on a clean, smooth surface using a rolling pin. Make sure it's rolled out to an even thickness, usually around 1/8 to 1/4 inch thick.
Select Your Cutters: Choose the alphabet cutters you need to spell out your message or name.
Dip in Sno Creme: To prevent sticking, you can dip the cutter in Sno Creme before cutting each letter.
Cut Out the Letters: Press the selected cutter firmly into the rolled-out fondant. Make sure to press evenly to get a clean cut. If the fondant sticks inside the cutter, you can gently tap it out onto your work surface.
Repeat: Continue cutting out all the letters you need for your message or name. If you're making multiple words or phrases, you might need to roll out more fondant and repeat the process.
Arrange on Your Cake or Dessert: Once you have all your letters cut out, carefully arrange them on your cake or dessert to spell out your message. You can use a small spatula or knife to help position them exactly where you want.
Attach the Letters: If the fondant letters don't stick to the cake on their own, you can lightly brush the back of each letter with a small amount of water or edible glue before placing them on the cake.
Decorate Further (Optional): You can further decorate your cake or dessert by adding additional fondant decorations, piping frosting around the letters, or adding other embellishments like sprinkles or edible glitter.
Allow to Set: Once your fondant letters are in place, allow them to set for a little while before serving to ensure they stay in place.
Serve and Enjoy!: Once everything is set and looking perfect, it's time to serve and enjoy your personalized creation!

Remember, practice makes perfect, especially when working with fondant. Don't get discouraged if your first attempts aren't perfect—just have fun and keep experimenting!