Idolatry really makes fools out of people and these are picture positive of how idolatry makes one stupid. Any pagan religion can go ahead and say, "We do not worship the image, only the one portrayed by the image." I can only say, "Excuse me but your actions speak louder than words."
The offering of food before an image of Ganesha. Psalm 115:4-8 and Psalm 135:15-18 all say that idols have eyes, nose, ears and mouth but they do not move or speak. Well even with all the delicious food that is there, the image of Ganesh is not even going to have one bite of it.
Jeremiah 10:3-5 expresses the fact that these are all but a product of materials drawn out, molded into a god, it has to be fastened with nails so they do not move. However, they needs to be carried because they cannot walk. God tells Jeremiah not to be afraid of them.