the gradient one is my favourite. Its just so much cooler than the rest.

Anyway, i didn't find the .fla but i posted this code on another site, which is basically it.
code:


//create items on the stage 

var items = 10; 

for (var i = 0; i<items; i++) { 

   attachMovie("item", "item"+i, ++d); 

   var p = this["item"+i]; 

   p._x = random(400); 

   p._y = 100+random(300); 

   p.gotoAndStop(i+1); 

} 

//create inventory array 

var inventory = []; 

var inventoryOb = {x:30, y:30, w:25}; 

//check for mouse hit 

onMouseDown = function () { 

   var mx = _root._xmouse; 

   var my = _root._ymouse; 

   for (var i = 0; i<items; i++) { 

      var ob = this["item"+i]; 

      if (ob.hitTest(mx, my, true)) { 

         modifyInventory(ob); 

      } 

   } 

}; 

function modifyInventory(ob) { 

   var l = inventory.length; 

   for (var i = 0; i<l; i++) { 

      if (ob == inventory[i]) { 

         //item exists already, put the item back on the stage, and remove it from the inventory 

         inventory.splice(i, 1); 

         ob._x = random(400); 

         ob._y = 100+random(300); 

         for (var p = i; p<i+l; p++) { 

            //re-position other items in the inventory 

            var t = inventory[p]; 

            t._x = inventoryOb.x+(inventoryOb.w*p); 

         } 

         return; 

      } 

   } 

   //item doesn't exist already, place it in the inventory 

   inventory.push(ob); 

   ob._x = inventoryOb.x+(inventoryOb.w*l); 

   ob._y = inventoryOb.y; 

}