If you have an extra $2.5 million to spare, you can become the proud owner of The Robosaurus. Some specs from the web page:
Stands 40 feet tall (twice as tall as Tyrannosaurus Rex)
Weighs 60,000 pounds (over 3 times heavier than Tyrannosaurus Rex)
Lifts 4,000 pound cars up higher than a 5 story building
Breathes 20 feet fingers of flame that incinerate paint and plastic
Somehow, I think that very few people would mess with me if I were to own it.