ALL of these items are very easy to do via websites such as teespring. all they need is an image, and from there you simply select what you want it printed on as/when someone orders something. they take the orders and ship etc so the club has no intervention.
We ask the same question every year regards merch, and nothing changes. im not saying its a simple task to organise and it does take a lot of time to arrange and ensure is kept running..... THAT is the reason i suggest we use an online company that will print "as required" with no minimal qty needed. they wont let you use registed names such as "suzuki" in the descriptions but can obviously be used in an image as its just that... an image. site is https://teespring.com/