Non-mobile: http://www.amazon.com/dp/B008PGMG58/ref=mp_s_a_1_44?qid=1427848310&sr=8-44&keywords=neodymium+magnets&pi=AC_SX200_QL40&dpPl=1&dpID=41%2BLUnT4gkL&ref=plSrch
That's why I'm here, I don't judge you. PM /u/xl0 if I'm causing any trouble. WUT?
http://www.amazon.com/gp/aw/d/B008PGMG58/ref=mp_s_a_1_44?qid=1427848310&sr=8-44&keywords=neodymium+magnets&pi=AC_SX200_QL40&dpPl=1&dpID=41%2BLUnT4gkL&ref=plSrch
Drill out with 1/4" drill bit until magnets fit.