Confetti

Abstract

Pieces of confetti that have the ability to spiral or autorotate downward in a novel and pleasing fashion when falling are described. The downward spiral or autorotation of an individual piece of falling confetti of certain desirable embodiments can be described as being similar to the downward fall of a maple seed or the decent of an autorotating helicopter making an emergency, unpowered decent.

1 . A plurality of pieces of confetti comprising at least two pieces of confetti, wherein each of the at least two pieces of confetti each comprise
 a. a head portion that has a head portion area wherein the head portion area has a head portion area density and   b. a tail portion that has a tail portion area and the tail portion area has a tail portion area density   
     wherein the head portion area density is greater than the tail portion area density. 
   
   
       2 . The plurality of pieces of confetti of  claim 1  wherein the head portion area density is at least about 5 percent greater than the tail portion area density. 
   
   
       3 . The plurality of pieces of confetti of  claim 1  wherein the head portion area density is at least about 10 percent greater than the tail portion area density. 
   
   
       4 . The plurality of pieces of confetti of  claim 1  wherein the head portion area density is at least about 20 percent greater than the tail portion area density. 
   
   
       5 . The plurality of pieces of confetti of  claim 1  wherein the head portion area density is at least about 50 percent greater than the tail portion area density. 
   
   
       6 . The plurality of pieces of confetti of  claim 1  wherein the head portion area density is at least about twice the tail portion area density. 
   
   
       7 . The plurality of pieces of confetti of  claim 1  wherein each of the at least two pieces of confetti has a length and a width and the length is at least about two times the width. 
   
   
       8 . The plurality of pieces of confetti of  claim 1  wherein each of the at least two pieces of confetti has a length and a width and the length is at least about three times the width. 
   
   
       9 . A plurality of elongated pieces of confetti comprising at least two pieces of confetti wherein each of the two elongated pieces of confetti has a first end head portion and a second end tail portion and wherein the weight per unit area of the first end head portion is greater than the weight per unit area of the second end tail portion. 
   
   
       10 . The plurality of elongated pieces of confetti of  claim 9  wherein the first end head portion comprises a weight. 
   
   
       11 . The plurality of elongated pieces of confetti of  claim 9  wherein the first end head portion comprises a weight selected from the group consisting of a seed, a drop of plastic, a drop of metal, a coating, and a ball bearing. 
   
   
       12 . The plurality of elongated pieces of confetti of  claim 9  wherein each of the at least two the pieces of elongated confetti have a height H and a tail end portion width W T  wherein W T  is not greater than one half of the height H. 
   
   
       13 . The plurality of elongated pieces of confetti of  claim 9  wherein each of the at least two pieces of confetti have a height H, the first end head portion has a width W H  that is not greater than one half of L and the second end tail portion has a width W T  that is greater than second end tail portion width W H . 
   
   
       14 . The plurality of elongated pieces of confetti of  claim 9  wherein the first end head portion has a width W H  and the second end tail portion has a width W T  that is greater than first end head portion width W H . 
   
   
       15 . The plurality of elongated pieces of confetti of  claim 9  wherein the pieces of confetti comprise two sheets of material. 
   
   
       16 . The plurality of elongated pieces of confetti of  claim 9  wherein the pieces of confetti comprise two sheets of material adhered around a weight that is located proximate the first end head portion 
   
   
       17 . A plurality of pieces of confetti comprising at least two pieces of confetti, where each of the at least two pieces of confetti each comprise
 a. an area and a center of area and   b. a mass and a center of mass   
     wherein the center of mass and the center of area are not at the same point on each of the at least two pieces of confetti. 
   
   
       18 . The plurality of pieces of confetti of  claim 17  wherein the at least two pieces of confetti each comprise a first end head portion and the center of mass of each of the at least two pieces of confetti is closer to first end head portion of the piece of confetti than the center of area is to the first end head portion of the confetti. 
   
   
       19 . The plurality of pieces of confetti of  claim 17  wherein the at least two pieces of confetti each comprise a first end head portion and the center of mass of the piece of confetti is closer to first end head portion of the piece of confetti than the center of mass is to the center of the area of the piece of confetti. 
   
   
       20 . The plurality of pieces of confetti of  claim 17  wherein the at least two pieces of confetti each comprise a first end head portion and second end tail portion and the center of mass is closer to first end head portion of the piece of confetti than the second end tail portion of the piece of confetti.