The Ostomy and Restroom Access Communication card. 
 
Made of credit card plastic, not laminated card stock or paper. 
Same size as a standard credit cards. 
Discreetly inform security that you have an Ostomy on one side
Request access to closed or non-public restrooms on the other side. 
Long lasting, durable, easy to keep in your wallet, purse, or ostomy supplies bag.