Spread 4 slices of toast with mayonnaise. Add cranberry sauce, turkey breast, tomato and lettuce. Spread 4 slices of toast with mayonnaise and top the turkey breast layer. Spread other side of second toast slices with sour cream. Add a layer of turkey ham, bacon, and cheese onto the second slices of toast. Spread remaining toast slices with sour cream and top sandwiches. Secure with toothpicks and slice into quarters.