Abstract: A kit is provided for practicing a method of preparing novel, three-dimensional objects of plastic material. The method comprises forming an object from shrinkable plastic sheeting, a portion of which object is provided with a decorative coat of particulate material such as flocking; heating said object sufficiently to cause the plastic to shrink but not flow whereupon the portion of the plastic covered with the coat of particulate material bulges or puffs outwardly, then cooling the object to harden the plastic and to obtain a novel three-dimensional object. The kit may include shrinkable plastic sheeting which already has a portion coated with a decorative particulate material or alternatively it may include uncoated shrinkable plastic sheeting, a supply of a decorative particulate material such as rayon flocking and, if necessary, means for attaching the particulate material to the plastic sheeting.