pull a prank involving 100 lawn gnomes

Alright so I live in an pretty small place and there aren’t really that many gnomes about and the few that are around are in areas of the city I am not willing to go to at night (for very good reasons). So I am going to cut this task to 50 gnomes as which is still a lot considering in this concrete jungle there are perhaps about ten gardens…alright slight exaggeration there…but yes there is my update. To my fellow gnome pranksters I wish you a good day!