It depends on the context of the comic. Maybe you could draw something related to the surrounding panels or add a funny element for surprise. Also, consider the characters' emotions and actions to make the fill-in logical.
It's not that complicated. Just start with a blank page and let your imagination flow. Sketch out the basic layout first.
First, think of a classic fairytale setting like 'Once upon a time in a faraway land...'. Then, create some blanks related to the main characters, for example, 'There was a [brave knight] who lived in a [magnificent castle].' You can also leave blanks for the plot events, like 'One day, the knight decided to [go on a quest].' This way, the reader can use their imagination to fill in the blanks and create their own unique fairytale.
Simple! Use simple words and familiar scenarios. For example, 'The [cute animal] likes to [play activity] in the [nice place].' Kids can easily think of words like 'cat' for the animal, 'jump' for the activity and 'garden' for the place. You can also base it on popular kids' stories, like 'In the [enchanted forest], [fairy - tale character] met a [mystical being].'
You can start with a well - known Christmas element such as a snowflake. So the story could be 'The snowflake _ (whispered) secrets to the other snowflakes as it fell from the sky. It's important to use your imagination and think of unexpected actions or words to fill in the blanks. Also, draw inspiration from Christmas movies, songs and traditions. For instance, 'The gingerbread man _ (challenged) the other cookies to a race around the kitchen table.'
To create funny fill - in - the - blank Christmas stories, start with a basic Christmas scenario. For instance, a Christmas party at the North Pole. Then, think of key elements that can be left as blanks, like 'At the North Pole Christmas party, the snowmen were (doing something).' You can make it funny by choosing unexpected actions such as 'At the North Pole Christmas party, the snowmen were break - dancing.' Keep the language simple and use lots of Christmas - related vocabulary like presents, elves, and Santa.