@margo,
here's an idea...
they need some new royal theatre to bump up the gate fees.
give them (the queen and such) back a touch of power. once or twice a year, they can pronounce "off with they're heads" on somebody important in British politics or society.
of course they couldn't really execute anyone. (no guns and all that) but they could exile them to one of the territories. (do they still have Grenada?)
think of the marketing possibilities alone...