I have this cabinet that we need regular access to, and I don't have a proper lock.

does anyone know any quick diy way to prevent my daughter from opening the door, but we have easy access to it. the clip we have there now is a baby toy, and I can feel it about to snap when I try to take it off. so I need another idea before I take it off lol. I won't have a chance to get to a store for another 3 days (I live in a very rural area with no stores for about half an hour), any ideas will be helpful! TIA