A lot of people have been making my business card catapult
as just a fun little toy to play with and don't really need it to look clean and pretty. It can also sometimes be difficult to glue the cards together well enough that they don't fall apart. For this reason I have made a simplified construction method that needs less tools and time. This method also makes the card a little more durable and forgiving to abuse. The downside is that it is not as attractive as the original method.
This one can easily be made in less than an hour. For the assembly video below it took about 40 minutes, and I was taking my time to make sure and explain everything and get it right. So 30 minutes would be possible even for a first time build.Here is a PDF of the Instructable that includes all the secondary images and annotations.
Here is a video explaining the assembly
It isn't really demonstrated much in action in that video, but it is pretty much the same as the original card