I'll post the stories about how they came to me later in the thread. Not sure how often I'll update, but I'm sure there'll be photo posts and text-only posts! :)
Today was cage-cleaning day, and so naturally it was also photo day.
The boys live in a 3x5 C&C cage with a divider to make it a 3x3 and a 2x3. Batman lives alone in the 2x3 and the brothers share the 3x3. This is due to fighting, which I will share lots about later, I am sure!
The funny thing is that they get along pretty well during floor time. I set up a pen in the kitchen and have finally clued in to putting a towel in the middle with veggies on it for them to share. The pen is about 16 grids circumference, and the grids are joined with zip ties into two long strips of grids. When I put them away, I have two zig-zag-folded piles of grids. This means that there are two potential openings in the pen, but I overlap the end grids and the boys have been pretty good.
Here is Batman, eating a carrot like it was the first carrot he'd seen in AGES. (It sort of was; I forgot to give them their carrots yesterday.)

And all three of my boys chowing down together. From left to right, that's Squeak, Bubble, and Batman.

Squeak and Batman are my trouble boys; they're the two who fought the first time, and Squeak's the one Batman keeps trying to bite in the head. (Yes, he did it again today. Little brat. It's a good thing Squeak has so much hair!) Here is Squeak stealing some kale from Batman.

Of course, if you saw my post here, you'll know that Bubble's favourite place to be is in his cage. He is not a fan of floor time or lap time and mostly just wants to go back to his cage.

Well, I have to say... I have a VERY smart guinea pig. He found one of those potential openings today and got himself out of the pen! I turned around from being nearly done putting the fresh fleece into the cage and found a little black (okay, LARGE black) guinea pig beetling toward me! He was pretty easy to catch, thank goodness, and so I popped him back into the pen and then grabbed the camera immediately so I could get video of him escaping again. The second time, he brought Batman with him.
http://youtu.be/7wMPK_GEjAI
I put everyone back where they were supposed to be and wedged the opening up against the cupboard so they couldn't get out while I was grabbing some of the cap joins from the grid sets. I came back to find that Bubble had managed to get it a little open and Batman had tried to get out but part of the pen had shifted so he couldn't actually go anywhere. I popped the cap joins on at the opening they'd found and put a couple on the other opening. I guess I'll be using them from now on!

Of course, then Bubble located the one spot in the pen where the bottom zip tie had broken. *headdesk* I popped ANOTHER cap join on the bottom of that one and was finally able to get the cage finished. (Sorry, no photos of the finished cage. I gave the brothers black fleece and Batman green, but the black blanket is actually nearly as large as the entire cage - as is the green - so it's more like Batman has mostly black with a bit of green!)
I swear, between escaping piggies and making tea for my migraine-y husband, it took me an hour to change out that cage today. It's already a physically demanding job, try adding chasing down guinea pigs! :D