いろんなフォントで「button hole」変換
Zen Old Minchobutton hole
Yusei Magicbutton hole
M PLUS 1button hole
Shippori Antiquebutton hole
Yuji Maibutton hole
Dela Gothic Onebutton hole
DotGothic16button hole
Train Onebutton hole
Hira Minchobutton hole
Potta Onebutton hole
Reggae Onebutton hole
Stickbutton hole
Zen Kurenaidobutton hole
Kosugi Marubutton hole
Rampart Onebutton hole
Hachi Maru Popbutton hole
New Tegominbutton hole
RocknRoll Onebutton hole
Kaisei Decolbutton hole
「button hole」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
