So far as I know, there are very few large scale official decals for big rig trucks. I know there are some aftermarket guys doing some things, but someone like Microscale offer no 1/24th-1/25th scale truck decals. With all of the HO scale things Microscale has, it would seem very easy for them just to scale the art work up. Some current truck logos would go great with modern kits like the Italeri Peterbilts, Volvos and up coming Lonestar.