Posters / tech stuff for classroom

Don't know if this is in the right forum but just started teaching programming in my old highschool. Looking for some cool posters/ tech stuff to hang around the room. Can't seem to find anything cool around my house because I throw out stuff for space :/ anywhere I could pick up some stuff and posters.

Dept. chair wants us to 'decorate' the room lol.

haha yes exactly things like this!

hilarious !

that Facebook page has all kinds of funny things

yup just took a bunch of images from it haha.

now i gotta find a place to print some posters :X

Do it at school if you can make sure that it is a mixture of A3 and A4 and laminated it.

Well, there's always these: