Of course, not every airplane company has the budget to claim half an acre of prime real estate (this week) at Oshkosh, but that doesn't mean they don't stand out. For instance, a patch of grass between two exhibit hangars, can be seen from all over the grounds for the bright yellow copy Cub hoisted 10 feet in the air on a steel frame (advertising a different product altogether). Even EAA has turned up the Fun, Fun, Fun at this year's show, as expressed by a huge stage that went up in Aeroshell Square on Sunday. The Beach Boys will play a concert against a backdrop of military aircraft, business jets and war birds on Monday. There's no extra charge for the musical interlude. By mid-day Sunday, parking and camping areas were filling up and mass arrivals by Mooneys, Bonanzas and Cessnas had arrived. The west end of Runway 9/27 is filled with Cessna 172s, there to celebrate the 50th anniversary of the most popular airplane ever built.