Continuing the clear out of domains we're unlikely to get around to using, here's a set of currency specific domains:
AUDCASINOGUIDE.COM
CADCASINOGUIDE.COM
EURCASINOGUIDE.COM
GBPCASINOGUIDE.COM
NZDCASINOGUIDE.COM
USDCASINOGUIDE.COM
ZARCASINOGUIDE.COM
Use case should be fairly obvious...
Sensible offers via PM.