My mini envelopes are currently sold in packs of 20 like this.
Not made up into the envelope shape and to be honest at craft fairs people often wonder what they are even with a mini one made up next to where they are displayed! I'm thinking of making them up into the actual shape.
However it's quite fiddly to do and due to the extra time I would need to up my prices of these to £3 for a pack of 20. Does that sound reasonable to you? I would love your thoughts whether they are positive or negative!