With a flower pattern made out of the dimples...

Switching back to ProV1's late last year after a stint with mental illness (I had switched to bstone).  I use the #13 since absolutely nobody would dare touch a ball with that number, plus I've gone back with the triple dot mark my little boys had put on my previous ProV's over 8 years ago.  4 wins out of 8 tournaments so far this year since going back to Titleist!!!  

I mark my ball along the pro v1 sign.

I like to keep it fairly simple - one orange dot (don't hardly see any on the course with that color dot) and a blue alignment line to help in putting. 

A dimple sized black dot below the number.

I don't mark my balls but play them fresh. I prefer it to be how it was made.

I mark some of my balls by name but no other markings

I mark my Pro V1x with one green dot over the "L"  in Titleist. I would post a photo if I knew how to.

my initials on my ProV1x !!!!

I keep it plain and simple with a little dot above the Titleist logo with whatever color marker I have.

A blue line along the Pro V1X.  Always blue.   Don't ask why.

With one green line under "Titleist" and the University of Oregon "O" on the other side, also in green. 

for decades at least, I have been marking my ball with a single black decimal point(or period) after the number on both sides of the ball...I have not ever run across anyone else using this mark, curious.

I use a green sharpie to mark my Titleist golf balls.  I put three green (filled in) spots below the "Titleist" on one side and above it on the other.  Essentially, I create a triangle with the three spots.  Recently, I started using red to help create a "putting line" on each side of the ProV1X.  My markings make it very easy to identify my ball, and the putting line helps in visualizing the putts.

'98' Was the year I started playing this great game and the year I got married!...

My favorite color and year born!

Up until now, I've gone exclusively with Karl Spackler quotes via customized order options.

This Fall though, I think it's time to switch things up a bit and change to Big Lebowski lines.  My next order is a dozen "Mark it 8 Dude!" Pro V1x's.  

(and remember: This is golf. Not Nam.  There are rules!)

Jeff, 

We played together in the Woo, and you've just quoted my two favorite movies?!?!  How did we not become best friends?  How about "Calmer than you are"

Love the ideas!

A blue dot on each side of the number

Loyalty program customization - 50, unlike my age, doesn't change from year to year.  Have added a red and green dot, one on either side of the number since Titleist is the number 1 ball at my club and the 50 doesn't strike anyone as unique.  ...Seriously?