I've been wondering about this, and I've never seen a thread for it, soo...
Do you wear your Ayu merchandise? Like the shirts, if you have them? Or do you use the towels, wear the wristbands, drink the Rock'n'Roll Circus tea? Or anything you can think of, discuss it here!
These are my answers for the items I own:
- 2 AT09 wristbands: I wear them to clubs!

I know people will probably think this is terrible, but they're still pretty clean

I just like them a lot, I don't wear pink/yellow t-shirts, but the two wristbands are a nice "subtle" flashy touch

- 4 Sport Towels (AT08, AT09 and two CDL08-09): I don't use them! The CDL ones are even still in their plastic sleeves. It's the complete opposite of the wristbands, I'm very careful with those towels! They're getting a bit dusty but I'm scared to wash them, I'm afraid they'll lose their color.
- R'n'R Circus Limited Box Set, Tea: didn't drink it! It's still in the packaging in the tin thingy that came with it.
I guess that's all of the usable / wearable Ayu merch I have

now what about yours?
edit: I forgot the 2008 Desk Calendar I have, but I don't write on it. But I don't think anyone here does.