Coz I know some people often don't read the links provided(OK, myself included, I confess!!!!), I'll add in other info I have :

Lincolnshire Shepherds : 1 to 10
yan / tan / tethera / pethera / pimp / sethera / methera / hovera / covera / dik /
11 to 20
yan a dik / tan a dik / tethera dik / pethera dik / bumfits / yan a bumfits / tan a bumfits / tethera bumfits / pethera bumfits / figgits

The "Counting Songs" thread mentions some from Sussex, Wales, Cornwall, Cumbria, and other stuff (like "eeny meeny miney mo")

Cheers! R-J