The smart entrepreneur would donate 17,900 to a third world country where t shirts are in constant demand. By retaining the other 100 he would be creating a niche market for something rare/ unique. Goodness knows how much collectors would pay for those shirts. Alternatively, he could do a deal with the government, make out the t shirts were part of a Covid order which was delayed, and pick up something like £ 20,000,000.00 " Nice little earner ".
With that first half performance by France I think heard some Argentinians chanting are you Swansea in disguise