If you've ever seen (or eaten) space food, you'll know that most of it is pretty unappetizing. But as this list compiled by A&D proves, there's more to space food than freeze-dried packets of powdered ice-cream and weird tubes of semi liquids.
I would try a recipe like this one to make the Doozer's Sticks. And maybe use a straw as a mold!?
How To Make A Sprinkle Cake | Sprinkles for Breakfast
Tutorial for how to frost a perfectly smooth cake with buttercream icing! Images and animated gifs with detailed instructions!