The only trophy I think that we have never won is the world championship. It used to be a one off game with south american champions but I think the world championship competition which was tried in 2000 should be done again, albeit no initations, based on merit.
Start off with the four winners of Europe, South America, Asia, Africa. Some of the champions which don't really fit into any of these four continents could play off for a last four spot. If this catches on then maybe expand it.
I know people will say rubbish but remember Britain didn't think much of the world cup in 1930 (took 20 years) or the European cup (for clubs) when that started.