Oooh fun topic! I'll play!
1) Shirts/Uniforms/Outfits
We (the Aztechs) generally just have team t-shirts that change with the game. They're sapphire and have our team name and number on them, sponsors on the back and the design tends to change. This year however, we're ordering sweatshirts and sweatpants because lets face it - its cold in the arena sometimes! Those will have our generic Aztechs 157 logo on them.
2) Headgear
We don't really do headgear, but last year our old spirit leader made braided yarn headbands in blue and gold.
3) Accessories
We have a mascot that our kids created - its a big robot head with a helmet in it with eyes that light up. One of the parents also made us a cool blue and gold cape that we gave to the MC's and it got worn it every time he announced our team. We've talked about doing a flag too, but haven't gotten that far. Oh we also have signs for the stands. One of our students created an Aztech headdress, spear, and shield as well.
4) Buttons/Other Handouts
We give out buttons every year, and have talked about some other kind of swag. Last year we also gave out beads and bubbles. I think we'd love to get to the point where we can get extra game t-shirts, bring them to the competitions and do a t-shirt swap with some other teams. We also have a brochure about our team that we put together for our festivals and outreach events.
5) Pit design, from tents to banners to TV's/monitors w/ slideshows.
We're in the process of revamping our pit design a little bit - we'd like to be able to showcase some of the things that we do with our kids over the course of the year and we haven't figured out how to do that yet. Its probably just a case of using the space efficiently.
Photos you say? Ok.
Our Aztech Head & T-shirts. Oh and bonus face paint.
The Headdress, modeled by one of our 2012 seniors.
You know how I said that we didn't have headgear? One of our students decided to use one of the poms as a wig in Boston.
Signs in the stands
I don't have any photos of the cape handy though. I'll try to track a couple down, because that thing is cool.
Good luck!