This would be nice for different reason.
At first I want to present some aspects participants entered before in a custom item with 4 fill-in-the-blank fields. Two of these aspects should now be presented on an introductory page to another questionnaire. On this page we only want to have some text and these aspects to be read out from the responses.xls. But when I code the page and use <var01> and <var02> as placeholders and Item Type 'HTML' the placeholders are not substituted. Finally I created a custom-item to display the aspects. The problem is that you need some form elements on the page and have the worse looking html-continue button. Luckily I found a way to include some no-harming form elements (a drop-down form with only one possibilitie). But it would be nicer to realize this without a workaround. Or to have some invisibile form elements...
The second situation was also in the same questionnaire. We want participants to rate words, and use the 'scale response' item type: A word on top and a 7-point response scale below. Because we like some elaborated Layout (i.e. different fontsize for the word and for the response button labels; the word centered on the screen) we used a html background. We centered the html file with the word and used the medialab way to label the buttons. Unfortunately we had to create a single html-file for every word. It would be quite nicer if the background html file could read out the variable name (<ml.varname>) so that you can use the same html file throughout the questionnaire.
We didn't use a custom item here because there participants have to make one click more on every page: Select their response and click on continue.
I attach the questionnaire that we finally build with 16 items, but I realized another one with more than 60 items. It was a really unpleasent work to create 60 html-files an name them. Especially because we dropped the questionnaire...