I have a cooler by the road for my eggs. It worked really well for about 6 months - then on 3 separate occasions someone stole the money. I bought a key drop-box with a lid, and screwed it to the sign (mine - with egg prices - chicken & duck), and I have not had a problem since. For a bit, someone was buying duck eggs and paying chicken egg prices....so I started putting a sticky not on each duck egg dozen indicating the price (and yes, they were on opposite sides of the cooler with a paper sign over each stack indicating what they were!) Someone must have paid the difference as one week I had 'extra' money in the till, and it equated to the 'short' for all of the duck egg dozen. I have sold through the cooler at the road (weekends, mostly) since a year before the pandemic, and other than that rash of thefts all within a 6 week period, have been fine. I think if you have some sort of secure thing for people to put the money into, you will be okay. Occasionally someone pays with some bills and some change and is a bit short - but it is occasional, and most of the money is there. And, I go through a lot of eggs every weekend (in addition to colleagues at work that regularly buy some). I usually sell 14 dozen chicken and 2-3 dozen duck eggs a week at the cooler IF I have that many.
This is what I got to secure my money, only it was blue. It has worked very well for me.
Egg sales tax:
Fluffy bottoms
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A preening bottom. This is one of my DC broodies - pre-egg setting
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Another one of my broodies - again, pre-egg setting.
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