As used in this article, the following terms shall have the meanings indicated:
And include amusement devices designed for and used by children such as but not limited to any mechanically or electrically operated pony, horse, boat, airplane and/or equipment of similar design which may be placed in or outside of any premises to which the public is invited, and which devices are to provide an up and down, rocking and/or circular motion for the enjoyment of not more than two children at a time.