Lilien Blessing

Gideon From a stamps-collector's-Forum called Collect brought me Ephraim Moshe Lilien's book Lieder Des Ghetto. The book is from 1902.
We see hands blessing the Star of David in the first pages of the book.
This illustration shows very clearly the importance of the Star of David for Lilien, who was known later as "the first Zionist painter".

Herzl Stamp

Photo of Star of David on the tab of Herzl Stamp issued on 1954 is courtesy of Ronik from stamps collectors’ forum called Collect. On the body of the stamp appear 7 white stars representing 7 hours of work Herzl dreamed the laborer in the new state would work. R. Erel designed this stamp.

The Good Fence

Photo of Star of David alonside the Lebanese Cedar on a cancel from 1980 is courtesy of Ronik from Hebrew stamps collectors Forum called Collect.
From wikipedia entry: The Good Fence:

The Good Fence is a popular term for Israel's northern border with Lebanon during the period following the Lebanese Civil War during which southern Lebanon was controlled by the Maronite Christians and the South Lebanon Army, friendly to Israel.