いろんなフォントで「big_board」変換
Zen Old Minchobig_board
Yusei Magicbig_board
M PLUS 1big_board
Shippori Antiquebig_board
Yuji Maibig_board
Dela Gothic Onebig_board
DotGothic16big_board
Train Onebig_board
Hira Minchobig_board
Potta Onebig_board
Reggae Onebig_board
Stickbig_board
Zen Kurenaidobig_board
Kosugi Marubig_board
Rampart Onebig_board
Hachi Maru Popbig_board
New Tegominbig_board
RocknRoll Onebig_board
Kaisei Decolbig_board
「big_board」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
