One of the coolest ways to observe and photograph occurs in the partial phase. Find a place where sunlight passes trough tree leaves, producing dapple patterns on a wall or sidewalk.
As the eclipse progresses, should will see multiple images of the crescent sun. No special equipment nor eye protection is needed, as you are not facing the sun.
You can produce a single crescent image by putting a pinhole in a piece of foil or dark paper. The smaller the hole, the more perfect the image, though it is not as bright. You will have made a camera obscura, a primitive lens. It’s a fun and safe project for kids.
Personally, I like the effect through the trees best.
Whatever you do, use protection if you are facing the sun. Sunglasses are not enough. The filtering needed is like in an arc-welding helmet.
I have read that even welding goggles are not enough. ???