If you have one:
What is it/are they of?
Where is it?
Why'd you get it/them?
What was the actual being tattoo'd experience like?
Do you regret it?
Any additional tattoo-related advice you have to give?
If you don't:
Would you ever consider it?
What would it be of, and where would you get it, if you were to get one?
ETA: Bonus for pics!