Gently wash strawberries under cool water and pat completely dry with paper towels; let air dry for 15-20 minutes to ensure no moisture remains.
Line a baking sheet with parchment paper.
In a microwave-safe bowl, combine chocolate and optional oil; microwave in 20-30 second intervals, stirring each time, until fully melted and smooth (or melt using a double boiler over simmering water).
Dip each into melted chocolate, coating about 3/4 of the way up; twirl and tap off excess.
If using toppings, roll or sprinkle immediately while chocolate is wet.
Place on prepared baking sheet; refrigerate for 15-20 minutes until chocolate hardens.