It's yet again very astute marketing from the purveyors of the the plastic portaloos - they're probably knocking them out for production cost of about a fiver apiece, so lobbing a stack of them at schemes like this costs them clutter all, but will get loads more free publicity from the BBC, and if it all goes to plan gets "Hearty Humble" getting orgasmic over the garish psychedelic monstrosities, therefore ensuring gazillions get sold (and landfill sites all round the country groan, knowing full well where most will end up in short order......)
Would I want one? No thanks, very happy with my entirely superior timber Top Bars and Warrés, and really wouldn't want to have a total taste-bypass (on purely aesthetic grounds) to want to clutter my lawns with superannuated beer-coolers in kiddy colours..........