I live in Burma and Laos, and teach elementary grades 'online' for about 6 hours every day I used to teach at international schools in Asia, but working from home is more 'cozy'. My students come from China, Burma, Russia, the USA, Taiwan and Korea
That works, as long as "sample" is written in ink. Our club has cards almost identical to QSL cards, but the back side has a "Welcome visitor" and history of the station. It can't be used as a QSL card. I assume (I know, BAD) it would be acceptable under the circumstances.