いろんなフォントで「internal+combustion」変換
Zen Old Minchointernal+combustion
Yusei Magicinternal+combustion
M PLUS 1internal+combustion
Shippori Antiqueinternal+combustion
Yuji Maiinternal+combustion
Dela Gothic Oneinternal+combustion
DotGothic16internal+combustion
Train Oneinternal+combustion
Hira Minchointernal+combustion
Potta Oneinternal+combustion
Reggae Oneinternal+combustion
Stickinternal+combustion
Zen Kurenaidointernal+combustion
Kosugi Maruinternal+combustion
Rampart Oneinternal+combustion
Hachi Maru Popinternal+combustion
New Tegomininternal+combustion
RocknRoll Oneinternal+combustion
Kaisei Decolinternal+combustion
「internal+combustion」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
