Yes, enter the code that RM said when you go to the shop and press the a button 4 times fast. The shopkeeper should look overwhelmed. Then, enter the code. A is the button on the left, B is the button in the middle, and C is the button on the right. The first time you enter the code, you will get a sample of the item free. The rest of the times that you enter the code you will have to pay 2000 gotchi points to get the special item.