10 inches in inside diameter and about 13 inches in outside diameter the component parts of this apparatus may be made of any materials of construction which are convenient including wood metal plastic etc in the preferred apparatus upper section 10 and lower section 11 are made of plastic pipe such as polyvinylchloride pipe base plate 12 may be an object commonly known as 34 frisbee 34 when there is no need to add any stability to the apparatus of this invention however when stability is needed e g when there is no lower section 11 inserted into the ground base plate 12 is made of a rigid material such as metal and may be made larger in diameter ring 15 may be made of rubber or other elastomeric material a preferred structure being that of ribbed tubing such as the plastic tubing used in swimming pool equipment ball 14 may be any type of rubber wooden metallic or other material a preferred structure is a ping pong ball to which is attached an eye by means of cementing so as to form the structure of fig4 filament 16 as has been previously described is preferably a nylon or polyester monofilament such as used in a fishing line it is to be understood that this invention contemplates an apparatus which merely rests on the ground and does not necessarily include lower section 11 which is pounded into the ground if base plate 12 is made of approximately heavy material such as metal and upper portion 10 is firmly attached thereto there is no necessity to employ a lower portion 11 inserted into the ground the general length and diameter of upper section 10 can be varied to suit the desires of those employing.