Slice each potato into as thin slices as possible, and thread the slices onto skewers.
If you're not going to cook them right away, you can keep them in water to keep the potatoes from turning brown. Try to fan the potatoes out so there is a little space in between but don't forget to leave enough room on the skewer so there's something to hold onto.
Start heating the oil in a heavy pot. Prepare a pan lined with paper towels or paper bags.
In a shallow dish, mix together the flour, water, and crushed chips. It should be thin and drippy.
Dip the potato skewers into the batter and spoon more batter over them, so the slices are thoroughly coated.
When the oil is hot enough (you will see bubbles form steadily if you dip a wooden spoon in), dip the skewers into the hot oil. Cook for several minutes until they are crisp.
Remove to a pan lined with paper towels and sprinkle with salt.