For people who aren't employees, there's usually only one place to buy them or other official Apple swag: the company's headquarters at 1 Infinite Loop.
Check out the exclusive Apple merchandise you can buy only once a year (AAPL)
Official Apple T-shirts are hard to find.
But once a year there's an exception to that rule. Every year at WWDC, the company's conference for software developers, Apple sets up a company store where attendees can buy Apple merchandise.
On the first two days of this year's WWDC, the pop-up outlet did brisk business as Apple fans and developers waited in line to buy exclusive Apple swag.
I went by and checked it out. Here's some of the Apple merchandise you could snag.
Last week, 5,300 developers descended on San Jose, California, to attend Apple's annual conference for software makers.
On Monday, CEO Tim Cook gave a keynote at the San Jose McEnery Convention Center.
After that, the Apple Company Store opened in an adjacent ballroom.
At times, attendees had to wait in a long line to get in.
The prices were pretty reasonable, except for the $10 screen cleaner.
This is what a $10 screen cleaner looks like.
A lot of people were buying the screen cleaners as souvenirs.
A variety of hats were available. I bought the white one, which is what Apple's security officers wear.
Nice pen ($10).
The pens had a stylus on one end — but don't expect them to replace Apple Pencil.
A ton of clothing was on sale too, much of it with designs you can't get anywhere else.
Like this T-shirt with a logo exclusive to WWDC 2017.
Or this coding joke.
There were also items attendees could take home to their kids.
I almost bought an Apple hoodie.
If you needed something warmer, Apple was also selling a vest.
And a jacket! (But the backpacks were sold out.)
And of course, the pop-up store took Apple Pay.