Answer:
For the craft fair, Mrs. Finely made a necklace using glass beads, wire, and a clasp holiday wreath using twine, ribbon, and buttons; and a headband using elastic flowers.
Step-by-step explanation:
That's the best edit of the given sentence adding a semicolon.
A semicolon is a symbol that is used to punctuate a sentence to show a linkage between two independent clauses that have a similar flow of thought.