Crumble the Little Debbie Christmas Tree Cakes into a large bowl.
Add softened cream cheese to the cake crumbs, mixing until well combined.
Form the mixture into small balls, about 1 inch in diameter.
Place the truffles onto a lined baking sheet and refrigerate for at least 30 minutes to firm up.
Melt white chocolate chips and vegetable oil together in a microwave-safe bowl, stirring until smooth.
Dip each truffle into the melted white chocolate, allowing excess to drip off before placing back on the lined sheet.
Decorate the truffles with sprinkles while the chocolate is still wet.
Once decorated, allow the chocolate to set at room temperature or in the refrigerator.
