All you need is :
1. Dog bowl or container (I use a metal bowl, Ice slides right out)
2. Varies dog treats
3. Optional - rubber dog toy
It looks like the picture when ready --->
You line the bottom of your bowl or container with dog treats. I tend to place those dog treat bones around the edge of the bowl. Plus, some on the bottom. Add a little water, enough to cover treats. Freeze. Remove from freezer. Add a second layer of treats or add a rubber dog toy. Add water enough to cover treats. Repeat til the dog bowl or container is full. Remember to leave space at the top of the bowl. As water when frozen will increase in size. If not, it may over flow in your freezer or over flow the dog bowl or container.
This is a cool way to help your dogs beat the heat. The dogs will stay hydrated by licking or eating the ice to get to the treats. Adding a rubber toy can be a way to reward your dog as well. Your dog will thank you for it.