Here’s a simple shortcode snippet to let you easily add a membership card for your site’s members when using WPMU DEV’s Membership plugin. This was requested in the WPMU DEV forums, where we love to help members out with simple and useful custom snippets. 
WPMU DEV Forum topic: Display Membership Data Print/Mobile
The snippet adds a [mem_card] shortcode that will then show some member details.
https://gist.github.com/bappi-d-great/5ab5a1bd9684d8512b39
The snippet can easily be added to your theme’s functions.php file, using the downloadable file available in that forum thread or using a plugin like Code Snippets.