The ATC Drop-Box

This is our ATC Drop-Box.  An old shoe-box got a hole and some paint and was placed in the art-room on a shelf. 
We have a digital school platform called 'Smartschool'.  Every subject has its own space.  On the art-class forum the theme is announced, but also in class on the board ('cause just like adult people not everybody like using a computer) The kids get a 'deadline'.  If they want to join in they can just drop their ATC in the drop-box. 
After the deadline has passed I make envelopes with the names of the kids who participated and swap the ATCs.  I always ask my envelopes back. (We have to teach them to think about the environment, so I re-use the envelopes several times!)
The drop-box is getting more and more successful. 
Fast workers often ask if they can make an ATC in class and that works well too.  Some kids make 3 or 4.  I'm always amazed with the results.
Introducing ATCs here in Belgium has been a great success up to now!

Our themes for the drop-box were Halloween, Christmas and now it's Valentines Day off course ...
I'm guessing Easter and summer holiday will follow.