
HI
you could try a and e collars - while mainly for staffys i think they do allow you to personalise . Cannot find the no. to hand but try going into google and putting the name in - it should come up as they have their own site .
Another useful one is Hide and Collars . As yet they havent got their website up and running but the number is 01430 879655 . They are great to talk to and very helpful . They do all handmade leather collars , leads and harnesses ( for all breeds- not just staffys) . They sometimes go to the Staffy shows and their stuff is lovely and reasonable too . They do a whole range of colours and say they will make whatever you want ( within reason of course ) - but any colour and any design you have in mind .
Hope that helps
:)
Lel