Mind By aydawalsh Share Tweet Share Share Ferrocells are so cool! It allows us to see Magnetic fields 🙂 Here is an instruction video on how you an make one! I am looking forward to making one of these this summer! Here is another person using different ingredients 6 drips baby oil, 2 drips mouse milk, 2 drips of wd-40 , 8 drips of ferrofluid.BTW-Mouse Milk is a penetrating oil used in the aircraft industry - You can use regular baby oil or WD-40. if you can't find one. How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post.