Cheddar Valley is another good 'un, don't know where you'd get some online, mind. Or if you're after something lethal, try Natch.
Cheddar Valley is bad enough ! Although personally I've always enjoyed it and just got stupidly mellow on it I've never seen another drink do so much damage to my drinking mates as much as this ! From projectile vomiting to wanting to fight and indeed fighting the whole world it really is a devils brew. The neon orange squash colour should give it away really but there you go.
May have to avoid the 'Natch' in this case ?