I havent found any that are cheaper but i use an earth magnet that i got from work. I just stuck it to the plug and she holds on for dear life. I swear these magnets are the strongest ones i have ever seen. i use them for everything from fridge magnets to finding lost parts in the yard. so i guess since i got them for free then yeah, i found some cheaper. they are the size of a rolo carmel candy piece and could hold a mack truck!
