Plugged

As frequent visitors of the blog might recall, I have my ears stretched to 1/2" (12mm). I had been wearing a pair of sodalite stone plugs for quite a while, but fairly recently I lost one of them and was not able to find it.
I am currently wearing a pair of acrylic/plastic plugs, but I don't like the fact that I am putting this plastic through my skin. My ears are often irritated. I'm planning on buy at least one pair of natural plugs, made from wood, stone, glass, or a safe metal (although metal is my least preferred). I would never wear bone, horn, or shell pieces because I am a vegan and do not wear animal products.
I haven't decided which plugs to buy yet, but here are some of my favorite ones that I've found so far. Which ones do you like?

Organic Flora Ear Tunnels, from Body Jewelry Source - $14.98

Organic Crocodile Wood White Water Lily Plugs, from Nature Plugs, $41.75

Green Moss Agate Stone Plugs, from Tarqs, $10+

Azurite Stone Double Flare Plugs, from Plug Club, $20

Peace Sign Stainless Steel Ear Gauges, from Body Jewelry Source, $14.99

Pale Pink Teardrop Rhinestone Plug Gauges, from From a Hobo's Handbag, $26