BTW what tunnel is $10? I don't know of any tunnel that costs that.
Cross Harbour: $20
Tseung Kwan O $3
Tai Lam: $25
Sha Tin (E) $8
Sha Tin (C) $6
Tsing Ma Bridge $30 (Round trip paid at the same time)
I forget the rate between Sha Tin - Tsuen Wan, and can't think of anymore tolls at the moment.