I don't know if this is something anyone would want to try or not but I've had this idea for a while. There could be a challenge where either a kid would commission a map or the mapmakers participating in the challenge could let their childlike imagination run free. I got this idea when my little brother designed a map he wanted me to make, it had one island that had 20 suns! In this challenge the normal "rules" of mapmaking can be broken. For example a river could act against the rules of nature, they could swirl all over the map or simply break off wherever they wanted to. I would name this river 'Anti River Police" .

I don't know if anyone would want to try this but I thought it was a cool enough idea to post.