A team of four Universe Awareness Student Ambassadors from Leiden University developed a project to implement a series education and public outreach activities in Timor-Leste on the occasion of a rare astronomical event: the transit of Venus 2012, the last in our life time. This project aimed to start an on-going collaboration between EU-UNAWE and Timor-Leste and to engage the Timor-Leste children with science and technology and broaden their horizons. The 5-day long programme included children’s activities, teachers training workshop, public talks, public exhibition and a massive public observing event of the transit of Venus. This experience brought to light many lessons on organising such event of this scale in a developing country, and we present the funding experience during this talk.