i had to make one of these things in 7th grade.
I used styrofoam as the cell it’s self.
and she let us used anything so i used macoroni noodles as mytochondria.
You can use pipe Cleaners for the endo plasmic Reticulum or the golgi bodies.
If u don’t know what those are, they’re like little wires with fuzzy colorful fuzz on them. you can use just about anything around the house.
like those bouncy balls? i used one for the nucleus. u can use marbles for the ribosomes.u can use yarn for the endoplasmic reticulum too
I HOPE this helps.