Zomby, you really have to ask yourself..

What would Jesus do?

Then you tell me if he's already not a spokesperson for Christianity. He's the face of that religion. Think about it. He was the first Ronald McDonald. The first Mascot. The first Dave Thomas. The first Noid. Of course, he had to die to get the PR contract - but them's the breaks.

Z,
I think that there are two arguments here. The one you link to is an entirely different one than the question that you pose. The link that I followed showed a Christian T-Shirt that had lifted the "Coca-Cola" signature and rewritten it for sales purposes. This I am not at all in favor of. I do believe that this is just a marketing ploy in order for people to make money from Christians.
However, the other question, which you pose, I understand as a different matter entirely. The need for Christians to "go and baptize all nations" (the great commission from Christ) is an evangelistic message. Paul instructs us to "be all things to all people" including simple and sometimes cheezy, as well as scholarly and sophisticated. Whomever you are speaking with, or speaking to needs to feel as if you are on their level. Not above, and definitely not below.
The difficulty of today's society is that the airwaves and cable jacks are streaming short, concise, "bite-size" (as you put it) morsels that people can gobble up mentally and then go about life as it works it's magic on their brain. Without Christianity making the same kind of efforts in their evangelism practices, the business side of Christianity (evangelism) will surely be left in the wake of those quick fix religions or pragmatic, logical religions that don't take much thought.
The theology of Christianity is an afterthought of evangelism. The first mission is to get them into the door. The next mission is to get sound doctrine into their heads. The third mission is to nurture and help their own personal spiritual gifts (after their acceptance of Christ). The last mission is to equip them with the knowledge and tools that they need to bring others into the door. None of this can or will take place if you cannot get them into the door. (and sometimes it takes more than one door, since not all churches have sound doctrine, nor are they all appealing to everyone.)
I hate talking about faith like a big business, but if Christ is our CEO then we must follow our objectives which he gave us: the first being "Love your neighbor as yourself," and the second being, "Go therefore and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit."
-Super

That was an excellent response.

Zomby,

Superhero's right. Your thoughts are excellent, but not really the same issue that I'm driving at. In response to your question, I'm fine with Christianity having logos and cool t-shirts and a sort of "marketing buzz" if you want to call it that.

But I really wish we'd do something *original* and *creative* in that direction, instead of scamming off other people's stuff.

Think about it. Why do people who claim to worship the *creator and sustainer* of the universe seem unable to do anything but cop marketing brands from secular establishments and slap Jesus' name on them?

In fact, to piggyback on Superhero's point, our inability to come up with something original is *diluting* the Christian brand. Now, I will say this, the cross is a great brand. But what we're getting with these t-shirts is not.

Supe- how ya been? :DI haven't seen you around in such a long time.

I second Zomby's compliment, but have to confess, that I am chewing and will come back later.

In your way of thinking, then, Christianity wouldn't need missionaries, right? Just drop off the books in the correct language and it sells itself?

No, to me there's a difference between evangelizing and selling--one you do for the benefit of the other person, the other you do to line your own pocket.

There's also a differences between honestly discussing scripture and offering up bumpersticker style sentiment and slogans--which is why I get my political philosophy from books rather than t-shirts.