I tried to make a few with free Craiyon, and the results were just unusably lame. I saw the list posted earlier, I'll see about using one of the more serious ones or paying for better features. I don't have any other reason to experiment with that software, but I do like the game.
I would suggest using the free tier of NightCafe to see how you like it.
I don't understand, people here were posting challenges every day, and then suddenly people just stopped as if this community was infected with a deadly disease. I've been explaining to people that my medical condition makes posting more than once per day almost impossible and with me going in and out of the hospital these days this community is going to end up closing if you subscribers refuse to contribute.