いろんなフォントで「knife+edge」変換
Zen Old Minchoknife+edge
Yusei Magicknife+edge
M PLUS 1knife+edge
Shippori Antiqueknife+edge
Yuji Maiknife+edge
Dela Gothic Oneknife+edge
DotGothic16knife+edge
Train Oneknife+edge
Hira Minchoknife+edge
Potta Oneknife+edge
Reggae Oneknife+edge
Stickknife+edge
Zen Kurenaidoknife+edge
Kosugi Maruknife+edge
Rampart Oneknife+edge
Hachi Maru Popknife+edge
New Tegominknife+edge
RocknRoll Oneknife+edge
Kaisei Decolknife+edge
「knife+edge」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
