A very difficult question however with some thought I've narrowed it down to two the first was a gift from Hamish and is on my Isle of Skye, here is the post I made about it when I got it.
http://www.xmarksthescot.com/forum/c...052/index.html
And a few photos




on the apron




My second favourite at the moment would have to be my Gecko pin that I found on ebay. Here is the review of it.
http://www.xmarksthescot.com/forum/k...284/index.html

And a photo of it on the apron


I like this pin as it has just about every colour of the tartan in it.