JERUSALEM — The “Friday of Tires” protest ended with another nine Palestinians killed along the fence hemming in Gaza despite a smokescreen of burning rubber and a second round of international criticism over Israel’s use of lethal force.

Now, young Gazans are talking about staging a “Flower Friday,” a “Coffin Friday,” and even a “Shoes Friday” at which demonstrators would fling footwear at soldiers to protest Israel’s longstanding blockade of the impoverished territory and its two million residents.

Far from being discouraged by the smaller turnout on Friday compared to a week earlier, Palestinians seem energized and enthusiastic about sustaining a generally nonviolent form of protest — even if it is Israel’s harsh response to it and the mounting Palestinian death toll that has put their conflict with Israel back on the international agenda.

“The Arab leaders, especially in the Gulf, thought they could neglect the Palestinian cause,” said Omar Shaban, director of PalThink for Strategic Studies, a Gaza think tank. “They thought it’s a stable conflict. But it reminds them, the U.S., Israel, the Europeans — all of them — that the problem is still there, guys. Things might seem to be stable, but no. It’s boiling.”