I made one from a modified box mix. Pina colada is pineapple-coconut flavored so I used a pineapple cake mix and added a box of coconut cream pudding. For the icing I made regular buttercream, and added Lorann pina colada flavoring to taste. It didn't take much! For the filling I have used a pineapple filling from CC, I have also used Rich's Bettercreme mixed with the Lorann pina colada flavoring.HTH! Good luck!