For your long feeder zip tying it to a couple bricks should do the trick. No bricks? Maybe a piece of 2x4 screwed to legs short pieces of 2x4 at a 90° to make anti tip legs.
The water is trickier. Usually by the time mine are needing the water elevated I am using a one gallon water dish so it is to heavy for them to tip.
The water is trickier. Usually by the time mine are needing the water elevated I am using a one gallon water dish so it is to heavy for them to tip.