Way back in the mists of time, I sold some Boxertrix Tee-shirts and fleeces to the users of this fine site. That involved finding a manufacturer, gauging interest, ordering a bunch of stuff and my expense and selling it on to you. The problem with this model was that I needed to make bulk orders to get the best price, so it was a fairly infrequent occurrence to make these shirts available. It also left me out of pocket as I never did end up selling all of the stock.
The world has moved on since then, and I have found a company called Teespring who offer a print on demand service for tee-shirts, fleeces and mugs. I simply upload a design and create a store front on their site, where anyone can order shirts and mugs in their choice of style, size and colour, and they will be produced and sent directly to you. This also allows me to define a small mark up on the production costs, which comes back to me to help cover the hosting costs for this very site. This means that you now have a way to contribute to the site running costs, whilst also receiving some goods, rather than just the rosy glow of satisfaction from helping me out with a donation.
If you would like to take a look at what is on offer, the shop is live here. I have uploaded two slightly different designs, one prominently featuring an R1100S Boxercup, and the other a black R1200S. Both designs have a selection of four other bikes under the Boxertrix logo. There is also a mug featuring 4 different bikes and the Boxertrix logo.
I appreciate that these a a little pricier than your average teeshirt, but bear in mind around £5 of each item's cost will contribute to the running costs of this site. I have also picked the better quality material for each shirt, where an option existed. If you like the gear, you will be helping me fund the hosting of this site by buying something. If you don't like the gear, then you are under no obligation to purchase any of it. I won't be offended

All the best,
Paul