5 items

1. Hair Cut
-- Market Structure: Oligopoly
-- Opinion: This item falls under an oligopoly because although there are some, there aren't many barber shops in the area to begin with.  Therefore, there are less options to pick from.

2. Hollywood Beauty Hair Brush
-- Market Structure: Monopoly:
-- Opinion: This item falls under a monopoly because this specific brush that i bought can only be found/bought in one store within this area. 

3. Ear piercing
-- Market Structure: Perfect Competition
-- Opinion: This item falls under perfect competition because there are numerous amounts of stores where this type of item can be purchased. 

4. McDonald's
--market Structure: Monopolistic Competition
-- Opinion: This item falls under monopolistic competition because there are many similar businesses that i can select from if i want to eat out.  For example, rather than choosing to eat out at McDonald's, i could have eaten out at Burger King, Wendy's, Taco bell, White castle, etc.

5. Talent Show Tickets
-- Market Structure: Monopolistic Competition
-- Opinion: This item falls under monopolistic competition as well because instead of attending the talent show Friday night i could have done a few other things.  For example i could have went to a friend's party, a teen club, went out to eat, or stayed home.