In the hardware section you can get a whole bottle of zip ties for around $10 at Walmart; In all sizes and colors. They work great just monitor their growth to change them out as needed.I have used them just fine for years on banties and large fowl. Use certain colors for different hatching dates, just keep a record of it or get you an EXCEL program to keep it on your computer. I agree with SandsPoultry on cutting the bands before you sell the babies; some people might forget to check the bands.