here's something quick and cheap, made from the 'leftovers' of pipemaking. Something like
...all the little old church ladies selling their godawful crochet and watercolor crafts at the local yard sales
These are plain old key rings and they make up fairly good birthday (or other) presents until all the family members and friends have one - then you still can supply the local artisans markets...
Very simple...
Best,
Steffen