Sure, you could take the DIY route to turn your SIM card into a MicroSIM and vice versa or you could simply purchase Cut My SIM, a clever, glorified hole-punch.
https://gizmodo.com/make-your-own-microsim-5532572
Cut My SIM is available for preorder and supposedly is a mistake-proof way of chopping up your SIM card. As a bonus, the clean cut means that you can change your homemade MicroSIM right back into a regular SIM without taking a messy DIY route. [Cut My Sim]
