So fun! Great fine motor skills also. For an extra challenge once mastery is achieved with the skewer you can try using dry/uncooked past as the stick. The penne needs to be gently placed on to avoid breaking the spaghetti so it's more intense concentration and fine motor control.
String on yarn is another challenge using same manipulatives
I like to do a few different activites with items. Saves time/ money/ resources while keeping interest and developing new skills.
RE: Pasta Threading Activity for Toddlers - Homeschool Activities Ideas