Just go to any local restaurant, hotel, or grocery store and they should be able to give you as many as you want. Not too many perks of working in the hospitality field, but this is one
Like absolut said. I went to my local Petsmart and purchased about 20 crickets and then asked the employee if they sold the egg cartons and I told her I am buying a big bulk of crickets and would be needing them and she replied saying she would give me as many as I would like free since they had an overabundance of them!