When teaching entrepreneurial strategies and values, there are a couple things I always advise folks to look out for: the unintentional illicit double entendre and unoriginal borrowing of other people's ideas. And for reasons I won't get into today, religious enterprises seem especially inclined toward both.
The "Hot!" Burning Bush
tee-shirt touted by Threadless knock-off Can U Believe It.
The double entendre is obvious, accentuated by the strategic placement of fallen leaves in the woman's lap as if to focus attention on where the fire will start. The first question that popped into my mind when I saw this picture was, "Isn't abstinence supposed to prevent that??"
The second problem is more systemic. From Godtube to blatant trademark ripoffs, Christianity is fostering a horrible reputation for unethical appropriations of others' intellectual property. Commercial companies have by-and-large held back from filing lawsuits, no doubt in large part due to fear of a Christian consumer backlash. Can U Believe It? only adds fuel to the fire, blatantly ripping the business model and interface design of popular user-created t-shirt site Threadless.
As this Mediabistro article indicates, resentment toward this practice is growing and at some point we'll hit the tipping point. Or to put it in more theme-appropriate language, "Repent, for the judgment of law is at hand."