Different identifications of tickets

Does anyone know of a way to get RT to identify itself differently
depending on the queue ?

We have 2 operations here, which for cutomer and support purposes need
to be identified individually, ie the [ticket.domain.com #250] assigned
number is fine for most stuff, but for one queue we want
[ticket.otherplace.net #350] to be displayed. Other than running 2
systems, has anyone found a way of doing this ?