I like the feel of felt in this craft because it reminds me of what Santa's outfit would feel like. But, if you're not that interested in textures, then by all means, go ahead and use cardstock for this. Basically, you'd follow the same method, but cutting out card stock instead of felt. Then, instead of using hot glue, you could just use school glue to hold it together. If you do use card stock, go with glitter card stock. It's a little cuter than regular card stock.