Origins of Tinkler Name in Scotland

Yesterday while I was goofing off on the Internet (at home, not at work!) I found an article entitled, "McNokairds: The Early Sinclairs of Argyll," by Karen J. Matheson. Check it out at [website link has expired]. It quotes part of "The Jolly Beggar," by Robert Burns:

"When thus the caird address'd her:

My bonnie lass, I work in brass,

A tinkler is my station:

I've travell'd round all Christian ground

In this my occupation;

I've taen the gold, an been enrolled

In many a noble squadron;

But vain they search'd when off I march'd

To go an clout the cauldron."

Originally published on the MyFamily.com website on 30 May 2000. Edited for clarity. Comments are in brackets.