I think it would be really awesome if there was a thing like the Sam & Max Case Files for SBCG4AP. Here is my idea for it;
It would come in a plastic inter-department mailing tube from Strong Bad's work (that he stole, of course), and inside would be;
1. A copy of Homestar's criminal record
2. Strong Sad's Pretendix (made from that gooey plastic that all those stretchy aliens are made from)
3. Bubs' Gold Record (like the Friendly Demon record, with a Two-O-Duo song and a few more from SBCG4AP)
4. Dangeresque's glasses made from cardboard OR a bullet with either Purducci, Sultry Buttons, Diamonocle or Killingyouguy's signage on them
5. The Logic Board from the TROGDOR!!! game or the key to the cabinet of said game.
Also, there would be a "hand-written" note from Strong Bad, that said something like;
“Hey, loser! You know my game? Well, while I was making it, I managed to steal all this crap from Telltale! I’m sending it to you for safekeeping. Oh, and if there’s anything missing, it was probably too awesome, and I took it. –Strong Bad”
Well, that's my idea! Expand and comment at your will! I mean, there's not really much I can do to stop you...