Even if you can’t think of your own cutting message to scribe and hold up to those around you, you can still get great enjoyment out of this free Holler Gram iPad app with its included messages. Get it now before it goes insanely popular at next week’s SXSW nerdfest!
You can also send messages straight to Twitter, with a Twitpic of the Holler Gram and hashtag. [iTunes via @Jopkins]