いろんなフォントで「ammonium」変換
Zen Old Minchoammonium
Yusei Magicammonium
M PLUS 1ammonium
Shippori Antiqueammonium
Yuji Maiammonium
Dela Gothic Oneammonium
DotGothic16ammonium
Train Oneammonium
Hira Minchoammonium
Potta Oneammonium
Reggae Oneammonium
Stickammonium
Zen Kurenaidoammonium
Kosugi Maruammonium
Rampart Oneammonium
Hachi Maru Popammonium
New Tegominammonium
RocknRoll Oneammonium
Kaisei Decolammonium
「ammonium」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
