What is good: Ear Stretchers

I have taken some pictures of the tribal jewellery shown on the Tribu website. My favourite ones are made from horn and coconut. 

Large plugs that are most commonly seen today,

 Not all plugs are round, you can also stretch them to different shapes...

If people don't like the concept of physically stretching their ear lobes then you can also buy fake ones that appear to be real once worn.

Here are a few images of the the stretchers that I like to wear and own.