I was wracking my brains on this too - I could care less about getting cd’s autographed - I’m not a collector and don’t want to get an autograph and shove it in a drawer – I wanted to do a MAKIT plate - makit.com - but didn’t think of it in time to order –
I ended up buying an 8x8 canvas, let my daughter pick out some colors and we painted it. Now she has a new pc of art to hang in her room w/their sigs on it.
I’d love to get a canvas print of the LIVING THINGS artwork in high quality and get that signed. But it’s far too much work to get that done and bring it to a concert. Then again, I did go through the work of getting a guitar signed. But that was an epic struggle getting it through security.
At my first meet and greet last year, I had them sign the art book from the A Thousand Suns box set
At tomorrow night’s meet in greet in Mansfield I’m having them sign the Living Things CD, and at the Summit on Friday I’m going to have them sign my back (around my tattoo).
I have a 4:30 appointment on Saturday to get them inked
photo or poster will be better i think. or booklet, vinyl cover, etc 
i dont now that i’m go to m&g and have sign’s on my laminate, but it too small =\
If selected, i will choose my Hybrid Theory EP. It will be my second signed item but what I really want is to meet them.
For me, the best thing is an album cover.