Ao andar as voltar pelo wiki da ubuntu, deixo aqui uma lista de links para material que poderia ser usado.

https://wiki.ubuntu.com/DIYMarketing

https://wiki.ubuntu.com/Artwork/Official

https://wiki.ubuntu.com/Presentations

https://wiki.ubuntu.com/IconsPage

https://wiki.ubuntu.com/WebsiteButtons

https://wiki.ubuntu.com/ServerBanners

http://joey.ubuntu-rocks.org/blog/presentations/

Panfleto:

http://doc.ubuntu.com/~marketing/spreadubuntu/DIY%20Material/DIY-at-home/Ubuntu_Leaflet/

https://wiki.ubuntu.com/DIYMarketing?action=AttachFile&do=get&target=Ubuntu_leaflet.pdf

https://wiki.ubuntu.com/DIYMarketing?action=AttachFile&do=get&target=Ubuntu_leaflet_p1.svg

https://wiki.ubuntu.com/DIYMarketing?action=AttachFile&do=get&target=Ubuntu_leaflet_p2.svg

Autocolantes:

https://wiki.ubuntu.com/DIYMarketing?action=AttachFile&do=get&target=Ubuntu_sticker.pdf