Most dog shows are held under Kennel Club rules, you get the odd 'fun' dog show like the Wag and Bone (that was this weekend at Windsor) and Paws in the Park (which is in Kent in September) that have fun classes but nothing serious - sometimes you get local fun dog shows one of the local villages near me had one some months ago
I do know of a fun dog show being held in Albrighton near Wolverhampton on the 2nd September where they are having Novelty and Pedigree Classes i dont know if thats anywhere near u

but if you want further information i can put you in touch with the organisers ..