I found this post in my drafts folder. My son is about 8 months old and this was his first experience with spaghetti like this.
I encouraged him to pick it up, showed him what it looked like by lifting it myself. He tried to eat it as he did most things.
Many other bloggers have dyed the spaghetti with food dye to increase the sensory experience.
You could add smell to the sensory experience maybe add lemon juice to the pasta when cooking . You could mix a sauce in too (chocolate, tomato)
The next step for us would be to use the spaghetti to make a piece of art to treasure.