Chicken drinkers

I have tried various chicken drinkers but can't seem to find an inexpensive one which doesn't spill all the water as soon as the chickens attack it !  Has anyone made their own version?  I have seen commercial ones with a large glass jar for the reservoir and wondered if any 'hen people' had tried adapting one?  Would be interested to hear your views and advice.

I have had the same problems, either knocked over or filled with the bark scratched up from the pen floor.  I now use a child's galvanised watering can and keep it in the corner of the pen. They have only ever knocked it over once. I did intend to sit it in a small tyre or something similar but haven't needn't to.  Don,t know if this helps but it works for me!!

I also have a mushroom type under a garden chair where they freerange, there's never any competition for this one so it has never been tipped over.

I also have a mushroom one and its fine .