If you want to show off Your Apple II side in clothing
there is a site that does exactly that.
They have a range of prints such as
Where in the World is Carmen Sandiego?
Apple //c forever
They even have Lisa and Mac T-shirts.
A range of TI-99 shirts are there as
well as arcade games.
Sweaters are available and hooded tops.
You can even buy posters.
The site is listed below.