Jewish symbols of action?

I have two tattoos adorning my body: a Magen David on my left shoulder with חי written inside, and a hamsa outline on my back. I’m looking to get one more tattoo, this one a Jewish symbol of action. My cousin suggested a hammer for the מכבים (Maccabees). In need of other options!

PS: I know tattoos are assur, so I’m not asking for judgment on getting one.