MJD430

Hello! I have over 40 foam pumpkins I bought last year on clearance that I want to use this year to make a pumpkin patch in my yard. I want to scatter them around my yard and have each one of them lit up on some sort of nightly schedule. I'm totally new to all this and looking for the best way to make this work. Does anyone have any ideas that could lead me in the right direction? I'm totally lost! Thanks!