Vegetable Chopper Manual Hand Pull String Onion and Garlic Mincer Chopper Small Fruit and Veggie Cutter Portable for Ginger Chili Pepper Meat Salad

Walmart has a tiny food chopper that works on this principle. It is in the kitchen gadget section for $10. https://www.walmart.com/ip/15682555150?sid=74b8b7b3-4399-43a6-9698-a14f671dba6b