いろんなフォントで「dun」変換
Zen Old Minchodun
Yusei Magicdun
M PLUS 1dun
Shippori Antiquedun
Yuji Maidun
Dela Gothic Onedun
DotGothic16dun
Train Onedun
Hira Minchodun
Potta Onedun
Reggae Onedun
Stickdun
Zen Kurenaidodun
Kosugi Marudun
Rampart Onedun
Hachi Maru Popdun
New Tegomindun
RocknRoll Onedun
Kaisei Decoldun
「dun」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
