How about the number 8 with a slash through it?Like this
http://i180.photobucket.com/albums/x128/davehollis69/character.png8 bits=1 byte
UTF-8 (which uses one byte)
8 is the luckiest number with the chinese population.
8 is an infinite closed loop like bitcoins.
It is similar enough to a B but it differs from the baht symbol.
Also $ symbolises a broken monetary system while a closed 8 is not broken.
My only concern with the slashed-8 is that at first glance it looks a lot like slash-S $. S and 8 are only one small line apart, and putting the line down the middle makes them look even closer. That, and an 8 would work better for Bytecoins than Bitcoins.
Perhaps with the vertical line at an angle instead?
