Screenshot from the YouTube channel Grand Illusions
Loads of springs covered of fabrics are compressed in this tube, and when the top is removed, they just jump out like giant colorful worms creating the amazing illusion of endless awesomeness.
The original inspiration was a joke toy made by a company in Germany. They made a small box which apparently contained soap - the label said 'Savon de Paris - La Tour Eifel'. However this turned out to be a rather tall story, since when you opened the box, a fabric covered spring leapt out, giving you a big surprise! Grand Illusions on YouTube