They will all be permanent items. It's just that the losing teams ones will only be available to craft that one day. And since they play the next day, you cannot know which to craft more of than another, if that makes sense.
This way you can craft as many as you please both to celebrate any team as they win or make them as a collector's item in the future. I figured it's fun and goes with the idea of limited time items quite well. A number of team colors are quite similar, but they will be different items for collectors.
That's sick, could you keep us posted on what's available as it goes on? Flag decals representing teams on clothing would be cool too and sneak in a vuvuzela whilst you're at it
@Clarky I can post which ones are available as it happens sure. But I'm not adding any flags like that, as those would become pseudo-political statements which is not allowed. This is to have fun and celebrate teams without that concern.