Chest of drawers that i want to lock, but i dont have the key?

I have a chest of drawers/dresser that has locks on all 5 drawers. I dont have the key, but i want to lock it. Looking at the lock, the key kinda looked like a skeleton key, but with a hole on the main shaft. The key would go in, youd turn it, and the lock would go up into the slot above it. Can anyone tell me how to make my own key to turn the lock, because i cant go to a locksmith, im a kid (14).