As far as I know, there are no commonly recognized symbols for Zionism aside from the star of David, and this does a great disservice to non-Zionist Jews and anti-Zionist Jews, to the point putting them in danger, because it conflates Judaism and Zionism. You might use the Israeli flag, but again this is fraught because of its insidious co-optation of the star of David.
As far as I know, there are no commonly recognized symbols for Zionism aside from the star of David, and this does a great disservice to non-Zionist Jews and anti-Zionist Jews, to the point putting them in danger, because it conflates Judaism and Zionism. You might use the Israeli flag, but again this is fraught because of its insidious co-optation of the star of David.