Very nice!
I knew it would only be a matter of time until we saw MySensors custom injected molded components!
I think if you made a box that could fit the Easy / Newbie board (~50x50cm) plus radio and 2AA batteries, you would probably sell a lot of them! I know I would buy some of those...
To fix, first clean the nozzle to look like new from the outside. Next heat up the nozzle to temp and apply pressure to the filament with your fingers, usually this will push through a clog. If you cannot manually push filament through, consider replacing the nozzle or entire hotend.
@evb my bad. The nodebb admin interface has a "Save" button that I didn't see so the changes I made were thrown away. I've re-entered the settings ans this time I clicked Save