I think almost everyone would agree that a banner that shows our support for the team whilst also maybe gently ribbing ourselves, maybe with an in-joke, would probably be best.
Someone mentioned something like "TITS - OLDHAM", maybe not quite that but in that vein.
Personally I think a banner saying "HOME OF THE TUBULAR BANDAGE" would be pretty funny. Opposition fans probably wouldn't have a clue, but then they probably wouldn't care regardless of the banner. It'd be a bit like the toaster at Wolves, or Notts's wheelbarrow song. That's my two penneth anyhow.
It's upto whoever wants to make/buy one though. If you're spending the time and money you do as you please. Bollocks to us moaning sods on here sticking our collective oar in.