I saw the thread where someone replaced their headliner. good idea as mine is hanging somewhat,,.got me thinking that there are dozens of different flags or flag size wall hangings for sale...Headshops in particular have all sorts that would fit in a truck,,,or ebay,,,Heck there is still a Nirvana and Pink Floyd hanging down in my music room that would fit,,couple girly banners from Fender ,,,wife would like that

Oh now you stylin'
http://www.ebay.com/itm/Elvis-Presle...#ht_5072wt_989

 

I've done a couple of headliners before, but just changed color. Peel as much of the old stuff off the cardboard as possible, use a putty knife for the rest. I used 3M's Super 77 adhesive (made for foams) and glued half at a time. It helps to have a second person to hold the fabric up as you lay it down. If you go with a thinner fabric, like a flag or something, I'd think you would still want the foam on the cardboard first, otherwise you might see all the little bumps from the stuff you couldn't clean off.