Konamistyle Japan released on August 2003 a collection of SH3 T-shirts.
Five motives were available.

 
Sexy Heather 2 Heather Robbie
Sexy Heather 1 usa

Silent Hill 3: Heather T-Shirt

Silent Hill 3: Sexy Heather 1 T-Shirt

Silent Hill 3: Sexy Heather 2 T-Shirt

Silent Hill 3: Robbie T-shirt

Silent Hill 4: Robbie the Rabbit T-Shirt
This box was also exclusive available at Konamistyle Japan. It comes with a "Robbie Tracks" disc. Release date: 08/2004

Silent Hill 4: Robbie The Rabbit T-shirt (pink female version)
This T-shirt was sold by Konamistyle Europe during the release of the SH4 game.

Silent Hill 4: Robbie The Rabbit T-shirt (black male version)
This T-shirt was sold by Konamistyle Europe during the release of the SH4 game.

Silent Hill 3: Promotion T-Shirt

Silent Hill 3: Blue Robbie wins T-shirt

Silent Hill 2: James Jacket / No. 002 of 250!