As an idea for a paid product: I want to be able to print these out and mail them on actual paper. Let me define variables - maybe in the header row of a .csv file? Everyone can use Excel - and build messages that include them. Create some templates for envelopes and notepaper sizes.

If your tool can output something that'll look like handwriting on paper (fuzz stroke weights a bit? I dunno), then oh my goodness I'd be tempted to buy it for, like, a wedding thank you notes project.

I guess that's mildly evil, isn't it? Forget I suggested it.