There's all sorts of things you can make custom envelopes out of: scrapbooking paper, coloured paper, foreign newspapers, magazines, old childrens books, old encyclopedias, old music scores ... the list is endless. Yes, this isn't new, lots of people do it, I know. Here are a couple I've made recently:
If you are going to use the templates there are a couple of important points:
- please first measure inside the fold lines (the dashed lines) to make sure it has printed out the correct size, I wrote the dimensions on two of them (if you can read my scribble), for the one without measurements maybe check an A6 piece of paper fits within the dashed lines.
- you'll need your margins to be as narrow as possible for the C6 templates.