いろんなフォントで「buttoning」変換
Zen Old Minchobuttoning
Yusei Magicbuttoning
M PLUS 1buttoning
Shippori Antiquebuttoning
Yuji Maibuttoning
Dela Gothic Onebuttoning
DotGothic16buttoning
Train Onebuttoning
Hira Minchobuttoning
Potta Onebuttoning
Reggae Onebuttoning
Stickbuttoning
Zen Kurenaidobuttoning
Kosugi Marubuttoning
Rampart Onebuttoning
Hachi Maru Popbuttoning
New Tegominbuttoning
RocknRoll Onebuttoning
Kaisei Decolbuttoning
「buttoning」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
