Help - Magnetic lock - lost key!

Does anyone know how to get into a cabinet with a magnetic childproof lock (when you’ve lost the magnetic key)?? I saw a video on YouTube that showed how to use a pin so I will try with a Bobby pin. I was thinking of going to a hardware store and just buying a magnet and seeing if that will work. I guess the last resort is I order another set of locks and wait for that key to come in. Any advice/help would be much appreciated! Love these locks btw…they have been working great!