Another 1
Put "Buying 'yournamehere' Retail Blockland off of internet the moment it comes out" on your parents calender, each one will think the other put it up. Then go to a tap, put water on your fingers and roll them down your cheeks. Finally, go to your parents, say you saw it on the calender and that you thought you were getting it today. Explain how fast it is to get. Win.