Re: to the pub
Yeah, sorry about that but I learnt what little latin I do have from the Asterix books which when I think about it might not have been the most accurate source.
In the same vein, how about "the sky will not fall today". A bit elliptic/tangential (being more Gaul than Roman), but it has a nice rousing feel, even if it's tinged with a sense of potential doom/failure. No idea what it is in Latin.
On second thoughts: "hic sunt Playmonaut!" (for a mix of Greek/Latin/Plastic)