One can find Big Brother shirts from various places all over the internet. These include Amazon, Ebay, Zazzle and CafePress. Also, a wide variety can be found online and instore in Mothercare.

No because if they go to a pool then they should know or if they have a brother.

Real geek t-shirts can be purchased at Zazzle or Future Shop or Best Buy. One can also check any generic t-shirt store , to find shirts that would appeal to your brother- in-law.

What color are the shirts.

custom printed t-shirts, Custom Printed T-shirts for Men, Graphic t-shirts for Men,

Graphic Design T-shirts T-shirts for Men, Cotton T-shirts for Men, Dialtee T-Shirts, Corporate and Logo t-shirts, Promotional T-shirts