AUSPICIOUS FENG SHUI ITEMS

I went to order my air conditioning units, fans and heater from a shop in Taman Samudera this afternoon.  What caught my attention was the auspicious Feng Shui items the proprietor had placed on the counter facing the main door.  No wonder those people selling such items are doing roaring trade. 
This was not the only shop I went that had such Feng Shui items.  I think that the presence of such items are found in many of the shops in Sitiawan.
So, are they effective?  Honestly, I do not think so.  However, I think that those have been blessed by a Sifu or Master might be effective.