いろんなフォントで「natural_glass」変換
Zen Old Minchonatural_glass
Yusei Magicnatural_glass
M PLUS 1natural_glass
Shippori Antiquenatural_glass
Yuji Mainatural_glass
Dela Gothic Onenatural_glass
DotGothic16natural_glass
Train Onenatural_glass
Hira Minchonatural_glass
Potta Onenatural_glass
Reggae Onenatural_glass
Sticknatural_glass
Zen Kurenaidonatural_glass
Kosugi Marunatural_glass
Rampart Onenatural_glass
Hachi Maru Popnatural_glass
New Tegominnatural_glass
RocknRoll Onenatural_glass
Kaisei Decolnatural_glass
「natural_glass」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
