'If you have any old consoles that you dont use/need anymore that are working, I will be happy to do a swap for things of interest,' he wrote. Meanwhile, Gumtree user James from Queensland, has called for interested buyers to trade their old gaming consoles for his 'new and unopened McDonald's mysterious Big Mac Special Sauce'. Gumtree user James has called for interested buyers to trade their old gaming consoles for his 'new' sauce