Mother Lode pins increase the Drop Rate. These pins are useful when trying to obtain more pins, but the take up a pin slot that could be used for a more powerful pin that inflicts damage. Mother Lode pins increase the drop rate and Grandmother Lode pins greatly increase the drop rate, but in return you receive no pin or experience points. The Pig pin is the only Grandmother Lode pin, all Mother Lode pins are obtained on Another Day.
The Mother Lode Pins are: