The present invention provides an imitation lighter-than-air craft having an improved skirt and gondola. The skirt includes an attachment assembly to ensure that the skirt is snugly positioned against a conventional inflatable balloon, such that the skirt and balloon combine to imitate the envelope of a true lighter-than-air craft. Also provided is an improved gondola which utilizes elements similar or identical to those used in the skirt and attachment assemblies, resulting in savings in manufacturing costs in that a minimum number of different parts are required.