public void DepopulateDropList()
 {
     foreach (WorldEntity E in MyDropEntities)
     {
         if (Stickers != null && Stickers.Contains(E))
         {
             Stickers.Remove(E);
         }
         if (Shell.UpdateQueue.Contains(E))
         {
             Shell.UpdateQueue.Remove(E);
         }
         if (Shell.RenderQueue.Contains(E))
         {
             Shell.RenderQueue.Remove(E);
         }
     }
     MyDropEntities = new ArrayList();
 }