I've got 5, all quite little and easily hidden. In the order I got them: the sound holes from my violin on either side of my ankle, an olive branch on my foot (best friend who I met on a school trip to Greece has the same), the outline of an otter on my hip, a jigsaw puzzle piece with a G inside it on my wrist (the Boy has a corresponding piece with an A) and one line of lyrics on the side of my ribs. All just black, no colour.
First was done when I was 18 so about 6 years ago, the last was done about 2 years ago. The first 4 were all done in the space of about 2 years, don't think I'll be getting any more...
Wouldn't say I regret any of them, I probably wouldn't have the puzzle piece done given the time again because I think it's a bit silly and clichéd but we were a bit drunk in Barcelona on our honeymoon and it seemed like a good idea so I like the memory of it.