As I indicated earlier, if you only give a tangible "thanks" to "frontline" workers it would be a complete slap in the face of all those who are risking their own health working in supermarkets, stores, trash removal etc etc or those who are going out of their way to assist others by doing the shopping for them etc. As someone who has served in the military and worked in an operating room for decades I knew that my jobs brought risks with them and thus needed way less gratitude for simply doing my job but a cashier in a supermarket or the cleaning staff of public buildings or health facilities do not get paid to put their lives and/or health on the line. These are the people that deserve a ton of credit and respect. I'm not saying that it isn't hard for health professionals right now as I have a lot of friends still working in OR's/ER's and ICU's and they are working their asses off... but they also know that they are getting tons of support and gratitude while a lot of people in stores still have to deal with aggression and disrespectful behavior.
So you would have to make any type of medal available to all who are helping which seems like a unimaginable task.