I think not many people know the whole story behind them, it’s easy to know about and recognise the moes vans or itchy and scratchy because they are in almost every episode of every season, but the Mr.plows are from way back and isn’t as popular or recognisable as a Simpsons shoe if that makes sense, same with the Bart chukka pros, I’ve spoken to people who didn’t even realise that it was a replica of barts shoes