Sports Foam Balls

What type of fan-gear do you have in the U.K.?
I’m working on a catalog cover with a sports theme that has to be used in both the U.S. and the U.K. (and some Europe). I don’t want to show any sports balls, but would like to decorate it with team gear in our corporate colors for some ambiguous sport.
In the U.S., we’d have pom-poms, pennants, flags, foam fingers, etc. Is there anything here that is absolutely not used in the U.K.? Are there more? Imagine what a fan would have in the stands or at home in front of the television.
I can do two separate covers if necessary to make this work, but traditionally – we keep the covers uniform for this one book per year.
Thanks in advance for your help!
Well, in my experience, we generally stick to team flags, team shirts, scarves and occasionally hats. We never use pom-poms, pennants or foam fingers lmao.
QuickStart Tennis – Ages 9 & 10: Circle Volley